Behavior & Social

Toddler Delayed Social Skills - Not Interacting with Other Kids

Medically reviewed by Dr. Emily Torres, PhD, CCC-SLP · Pediatric Speech-Language Pathologist

Content reviewed against published AAP, CDC, Zero to Three guidelines

Editorial policy

Last reviewed:

Behavioral development varies greatly from child to child. If you have noticed toddler delayed social skills - not interacting with other kids, here is what you need to know.

The short answer

True cooperative play (playing with other children) does not typically develop until age 3-4. Toddlers under 3 primarily engage in parallel play - playing alongside other children but not with them. This is a normal developmental stage, not a social delay. Your 2-year-old ignoring other children at the playground while playing in the sand next to them is completely age-appropriate. Social concerns are more about whether your child notices and responds to people (adults and children), not whether they play cooperatively with peers.

Key takeaways

  • True cooperative play (playing with other children) does not typically develop until age 3-4. Toddlers under 3 primarily engage in parallel play - playing alongside other children but not with them. This is a normal developmental stage, not a social delay. Your 2-year-old ignoring other children at the playground while playing in the sand next to them is completely age-appropriate. Social concerns are more about whether your child notices and responds to people (adults and children), not whether they play cooperatively with peers.
  • Usually normal when: Your toddler under 3 plays alongside other children rather than with them (parallel play)
  • Call your doctor if: Your child has lost social skills they previously had (regression)
  • Varies by age — see the age-by-age breakdown below

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What Parents Should Know

According to AAP, CDC, Zero to Three guidelines, true cooperative play (playing with other children) does not typically develop until age 3-4. Toddlers under 3 primarily engage in parallel play - playing alongside other children but not with them. This is a normal developmental stage, not a social delay. Your 2-year-old ignoring other children at the playground while playing in the sand next to them is completely age-appropriate. Social concerns are more about whether your child notices and responds to people (adults and children), not whether they play cooperatively with peers. At 12-18 months, at this age, toddlers are interested in other children but mainly through observation. They may watch other kids, imitate their actions, or approach them, but sustained interaction is not expected. Social connection at this age is primarily with caregivers. Your toddler should be seeking your attention, sharing interest by pointing at things, bringing you objects to show you, and looking to you for reactions (social referencing). These caregiver-directed social behaviors are more important than peer interaction at this stage. It is generally considered normal when your toddler under 3 plays alongside other children rather than with them (parallel play). However, you should contact your pediatrician promptly if your child has lost social skills they previously had (regression).

Sources: [1], [2], [3]

Normal vs. Concerning

Usually Normal
Worth Discussing
Your toddler under 3 plays alongside other children rather than with them (parallel play)
Your child has lost social skills they previously had (regression)
Your child is shy and takes time to warm up in new social settings
Your child shows no interest in any people - adults or children
Your toddler prefers one or two familiar children over large group play
Social difficulties are accompanied by lack of eye contact, no pointing or gesturing, and no pretend play by age 2
Your child interacts well with adults and familiar people but is less interested in unfamiliar children
Your child over 2 seems completely unaware of or uninterested in other children

By Age

What to expect by age

12-18 months

At this age, toddlers are interested in other children but mainly through observation. They may watch other kids, imitate their actions, or approach them, but sustained interaction is not expected. Social connection at this age is primarily with caregivers. Your toddler should be seeking your attention, sharing interest by pointing at things, bringing you objects to show you, and looking to you for reactions (social referencing). These caregiver-directed social behaviors are more important than peer interaction at this stage.

18-24 months

Parallel play dominates - your toddler plays near other children and may briefly imitate them or take their toys. Brief interactions like chasing, laughing together, or handing toys back and forth are emerging. Your child should be interested in other children even if they do not play directly with them. If your toddler seems completely unaware of or uninterested in other children, peers, and even adults beyond primary caregivers, this is worth discussing with your pediatrician.

2-3 years

Associative play begins - your child plays alongside others with some interaction (trading toys, copying actions) but without shared goals. Simple turn-taking games emerge. Some children are naturally more social and some are more independent - temperament plays a large role. A shy child who warms up slowly but eventually engages is different from a child who consistently ignores all people. Social skills develop with practice, so regular exposure to other children (playgroups, parks, daycare) helps.

3-4 years

True cooperative play develops - your child can play a shared game with roles, rules, and a common goal ("you be the doctor, I'll be the patient"). If your child at 3-4 cannot engage in any cooperative play, does not have interest in other children, prefers to always play alone, and struggles with basic social reciprocity (sharing, turn-taking, conversation), a developmental evaluation may be helpful. Some children are introverted and prefer quieter play - this is personality, not a delay - as long as they can interact when they choose to.

What to Tell Your Pediatrician

  • Describe when you first noticed toddler delayed social skills - not interacting with other kids and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if your child over 2 seems completely unaware of or uninterested in other children.
  • Mention if your child does not engage in any form of parallel or associative play by age 2.5.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

What Should You Do?

When to take action

Probably normal when...
  • Your toddler under 3 plays alongside other children rather than with them (parallel play)
  • Your child is shy and takes time to warm up in new social settings
  • Your toddler prefers one or two familiar children over large group play
  • Your child interacts well with adults and familiar people but is less interested in unfamiliar children
Mention at your next visit when...
  • Your child over 2 seems completely unaware of or uninterested in other children
  • Your child does not engage in any form of parallel or associative play by age 2.5
  • Your child has no interest in social games (peek-a-boo, chase, simple pretend play)
  • Other children consistently avoid playing with your child due to behavioral issues
Act now when...
  • Your child has lost social skills they previously had (regression)
  • Your child shows no interest in any people - adults or children
  • Social difficulties are accompanied by lack of eye contact, no pointing or gesturing, and no pretend play by age 2

What You Can Do at Home

  • Keep track of when you notice toddler delayed social skills - not interacting with other kids — noting the time of day, duration, and any triggers can help your pediatrician.
  • Remember that your toddler under 3 plays alongside other children rather than with them (parallel play) — this is generally within the range of normal.
  • At 12-18 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
  • Respond consistently and calmly to your baby's behavior. Maintain predictable daily routines.
  • While monitoring at home, seek immediate care if your child has lost social skills they previously had (regression).

Early Signs of Autism in Babies and Toddlers

Autism spectrum disorder (ASD) can sometimes be identified as early as 12-18 months, though most children are not diagnosed until age 2-3. Early signs include limited eye contact, not responding to their name, lack of pointing or showing, limited social smiling, and absence of pretend play. Having one or two of these signs does not mean your child has autism - many typically developing children share individual traits. However, a pattern of multiple social communication differences warrants evaluation. Early intervention, regardless of eventual diagnosis, consistently leads to the best outcomes.

Toddler Extreme Shyness - When Shyness Is More Than Temperament

Shyness and slow-to-warm temperament are normal personality traits found in about 15-20% of children. Shy toddlers need more time to observe before engaging and may cling to parents in new situations. This is not a disorder and usually does not need treatment. However, extreme shyness that prevents your child from functioning - refusing to speak outside the home (selective mutism), extreme distress in all social situations, or inability to separate from parents in any context - may indicate social anxiety and benefit from professional support.

Baby Not Interested in People - Poor Social Engagement

Babies are born social - from the first days of life, they prefer to look at faces over objects, respond to voices, and seek human connection. A baby who consistently prefers objects over people, does not look at faces, does not respond to their name by 12 months, and does not follow pointing or show things to others by 12-18 months may need a developmental evaluation. These social engagement skills are among the most important early developmental milestones and their absence is one of the earliest signs of autism spectrum disorder.

Milestone

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Milestone

Month-by-Month Development

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Guide

When to Call the Doctor

General guide on when to call the pediatrician, visit urgent care, or go to the ER.

Frequently asked questions

Is toddler delayed social skills - not interacting with other kids normal?
True cooperative play (playing with other children) does not typically develop until age 3-4. Toddlers under 3 primarily engage in parallel play - playing alongside other children but not with them. This is a normal developmental stage, not a social delay. Your 2-year-old ignoring other children at the playground while playing in the sand next to them is completely age-appropriate. Social concerns are more about whether your child notices and responds to people (adults and children), not whether they play cooperatively with peers.
When should I call the doctor about toddler delayed social skills - not interacting with other kids?
Your child has lost social skills they previously had (regression) Your child shows no interest in any people - adults or children Social difficulties are accompanied by lack of eye contact, no pointing or gesturing, and no pretend play by age 2
When is toddler delayed social skills - not interacting with other kids normal?
Your toddler under 3 plays alongside other children rather than with them (parallel play) Your child is shy and takes time to warm up in new social settings Your toddler prefers one or two familiar children over large group play
What causes toddler delayed social skills - not interacting with other kids?
True cooperative play (playing with other children) does not typically develop until age 3-4. Toddlers under 3 primarily engage in parallel play - playing alongside other children but not with them. This is a normal developmental stage, not a social delay. Your 2-year-old ignoring other children at the playground while playing in the sand next to them is completely age-appropriate. Social concerns are more about whether your child notices and responds to people (adults and children), not whether they play cooperatively with peers. Common explanations include: Your toddler under 3 plays alongside other children rather than with them (parallel play). Your child is shy and takes time to warm up in new social settings.
What should I mention to my pediatrician about toddler delayed social skills - not interacting with other kids?
You should mention toddler delayed social skills - not interacting with other kids at your next visit if: Your child over 2 seems completely unaware of or uninterested in other children. Your child does not engage in any form of parallel or associative play by age 2.5. Your child has no interest in social games (peek-a-boo, chase, simple pretend play).
Is toddler delayed social skills - not interacting with other kids normal at 12-18 months?
At this age, toddlers are interested in other children but mainly through observation. They may watch other kids, imitate their actions, or approach them, but sustained interaction is not expected. Social connection at this age is primarily with caregivers. Your toddler should be seeking your attention, sharing interest by pointing at things, bringing you objects to show you, and looking to you for reactions (social referencing). These caregiver-directed social behaviors are more important than peer interaction at this stage.
Is toddler delayed social skills - not interacting with other kids normal at 18-24 months?
Parallel play dominates - your toddler plays near other children and may briefly imitate them or take their toys. Brief interactions like chasing, laughing together, or handing toys back and forth are emerging. Your child should be interested in other children even if they do not play directly with them. If your toddler seems completely unaware of or uninterested in other children, peers, and even adults beyond primary caregivers, this is worth discussing with your pediatrician.
Should I go to the ER for toddler delayed social skills - not interacting with other kids?
Seek emergency care if your child has lost social skills they previously had (regression), or if your child shows no interest in any people - adults or children. When in doubt, call your pediatrician's after-hours line for guidance.
Does toddler delayed social skills - not interacting with other kids go away on its own?
In many cases, toddler delayed social skills - not interacting with other kids resolves on its own, especially when your toddler under 3 plays alongside other children rather than with them (parallel play). By 3-4 years, true cooperative play develops - your child can play a shared game with roles, rules, and a common goal ("you be the doctor, I'll be the patient"). If your child at 3-4 cannot engage in any cooperative play, does not have interest in other children, prefers to always play alone, and struggles with basic social reciprocity (sharing, turn-taking, conversation), a developmental evaluation may be helpful. Some children are introverted and prefer quieter play - this is personality, not a delay - as long as they can interact when they choose to.
AAPCDCZERO TO THREE

References

  1. [1]American Academy of Pediatrics. Social Development in Preschoolers. HealthyChildren.org. AAP
  2. [2]Centers for Disease Control and Prevention. Child Development Milestones. CDC
  3. [3]Zero to Three. Making Friends: How Children Learn Social Skills. Zero to Three

Doctor Visit Checklist

Bring this checklist to your next pediatrician visit to discuss Toddler Delayed Social Skills - Not Interacting with Other Kids.

Things to mention

  • Describe when you first noticed toddler delayed social skills - not interacting with other kids and how it has changed over time.
  • Note your baby's current age and which age-specific patterns you are seeing.
  • Mention if your child over 2 seems completely unaware of or uninterested in other children.
  • Mention if your child does not engage in any form of parallel or associative play by age 2.5.
  • Let your doctor know if you have noticed any related concerns, such as changes in feeding, sleep, or movement patterns.
  • Bring a list of any questions or observations you want to discuss at the appointment.

Observations to share

  • Your child over 2 seems completely unaware of or uninterested in other children
  • Your child does not engage in any form of parallel or associative play by age 2.5
  • Your child has no interest in social games (peek-a-boo, chase, simple pretend play)

Urgent signs to report immediately

  • Your child has lost social skills they previously had (regression)
  • Your child shows no interest in any people - adults or children
  • Social difficulties are accompanied by lack of eye contact, no pointing or gesturing, and no pretend play by age 2

My notes

From ismybabyalright.com — free, evidence-based baby health guides

All content follows our editorial policy and is reviewed against published clinical guidelines.

2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members

Related Resources

Milestone ChecklistsEarly Intervention DirectoryDevelopmental ActivitiesEmergency ContactsBaby Tracker

Bottom line

Most cases of toddler delayed social skills - not interacting with other kids are normal. Talk to your pediatrician if your child has lost social skills they previously had (regression).

Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.

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Early Signs of Autism in Babies and Toddlers

Autism spectrum disorder (ASD) can sometimes be identified as early as 12-18 months, though most children are not diagnosed until age 2-3. Early signs include limited eye contact, not responding to their name, lack of pointing or showing, limited social smiling, and absence of pretend play. Having one or two of these signs does not mean your child has autism - many typically developing children share individual traits. However, a pattern of multiple social communication differences warrants evaluation. Early intervention, regardless of eventual diagnosis, consistently leads to the best outcomes.

Toddler Extreme Shyness - When Shyness Is More Than Temperament

Shyness and slow-to-warm temperament are normal personality traits found in about 15-20% of children. Shy toddlers need more time to observe before engaging and may cling to parents in new situations. This is not a disorder and usually does not need treatment. However, extreme shyness that prevents your child from functioning - refusing to speak outside the home (selective mutism), extreme distress in all social situations, or inability to separate from parents in any context - may indicate social anxiety and benefit from professional support.

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Babies are born social - from the first days of life, they prefer to look at faces over objects, respond to voices, and seek human connection. A baby who consistently prefers objects over people, does not look at faces, does not respond to their name by 12 months, and does not follow pointing or show things to others by 12-18 months may need a developmental evaluation. These social engagement skills are among the most important early developmental milestones and their absence is one of the earliest signs of autism spectrum disorder.

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