Behavior & Social

Toddler Not Sharing (Developmental)

Editorially reviewed | Sources: AAP, NIH|Updated June 2026

The short answer

Not sharing is completely normal for toddlers and is not a sign of selfishness or poor parenting. Children under age 3 are developmentally egocentric — they genuinely cannot understand another person's perspective or desires. True sharing, where a child voluntarily gives something to another because they understand the other child wants it, typically does not develop until age 3.5-4. Forcing toddlers to share can actually backfire.

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By Age

What to expect by age

0-3 months

Not applicable. Babies at this age do not have a concept of possession or sharing.

3-6 months

Babies begin to grasp objects and may hold onto them, but this is motor development, not possessiveness. They do not yet understand the concept of "mine."

6-12 months

Babies begin to show preferences for certain objects and may resist when toys are taken away. This is the beginning of object permanence and attachment to objects — both healthy developmental signs. Offering a swap rather than simply taking a toy helps.

12 months+

Between 12 and 36 months, toddlers are deeply attached to the concept of "mine." This is actually a cognitive milestone — understanding ownership. Rather than forcing sharing, try turn-taking with a timer, modeling sharing, and praising any voluntary giving. By age 3-4, children begin to understand fairness and sharing becomes more natural.

What Should You Do?

When to take action

Probably normal when...
  • Your toddler grabs toys from others and refuses to let go — this is developmentally expected before age 3
  • Your child says "mine" about everything, even things that do not belong to them
  • Your toddler becomes upset or has a meltdown when asked to share
  • Your child shares occasionally or spontaneously but refuses when directed to share
Mention at your next visit when...
  • Your child over age 4 still has extreme difficulty with any sharing or turn-taking in all settings and is having significant social problems as a result
  • Your toddler's possessiveness is accompanied by intense, prolonged aggression toward any child who comes near their things
  • Your child shows no interest in other children at all and also has limited social interaction with adults
Act now when...
  • Your child's inability to share is part of a broader pattern of extreme rigidity, intense distress with any change, and difficulty with social reciprocity that may warrant developmental evaluation
  • Aggression related to possessiveness is causing injury to other children

Sources

Trust your instincts. If something feels wrong, reach out to your pediatrician.

Worrying about your baby means you care. That is a good thing.

Sibling Rivalry in Toddlers

Sibling rivalry is a completely normal part of child development and is nearly universal in families with more than one child. Toddlers are naturally egocentric and have limited ability to share, take turns, or manage frustration — all of which fuel sibling conflict. While it can be exhausting for parents, most sibling rivalry decreases as children develop better language and emotional regulation skills.

Toddler Bossiness and Control

Bossy behavior in toddlers is a normal developmental phase and is often a sign of strong leadership skills, growing confidence, and increasing language ability. Toddlers are learning to assert themselves and test the boundaries of their influence. They have not yet developed the social skills to negotiate or collaborate effectively. With gentle guidance, most bossy toddlers learn to channel their assertiveness into positive leadership over time.

Parallel Play vs Interactive Play

Parallel play — where children play beside each other but not directly with each other — is a completely normal and important stage of social development. It typically begins around 18-24 months and can continue until age 3 or beyond. Children are observing and learning from each other even when they appear to be playing independently. Truly interactive or cooperative play usually develops between ages 3 and 4.

Bonding and Attachment Timeline for Adopted Babies

Bonding with an adopted baby is a real and achievable process, but it may follow a different timeline than biological bonding. Many adoptive parents feel a strong connection quickly, while for others it develops gradually over weeks or months. Consistent, responsive caregiving is the single most important factor in building secure attachment, regardless of how your family was formed.

Aggressive Play vs Normal Play

Rough-and-tumble play — wrestling, chasing, play-fighting, and superhero battles — is a normal and important part of child development, particularly for toddlers and preschoolers. It helps children develop physical coordination, social skills, self-regulation, and an understanding of boundaries. The key distinction between normal rough play and concerning aggression is whether both children are having fun, there is turn-taking in roles, and no one is intentionally trying to hurt the other.

My Toddler Is Aggressive Toward Pets

Toddlers being rough with pets is extremely common and almost never reflects true aggression or cruelty. Young children lack the motor control to be consistently gentle and do not yet understand that animals feel pain the way they do. With patient, consistent teaching about gentle touch and close supervision, most toddlers learn to interact safely with pets by age 3-4.