A three-year-old who repeatedly tells another child they cannot play is not a bully in the technical sense. They are an egocentric, socially developing person who has not yet learned to balance their preferences with the needs of others. A six-year-old who coordinates their friends to consistently exclude one child from lunch and break time is closer to the clinical definition of bullying behaviour and should be treated more seriously.
The difference matters for how adults respond: responding to normal preschool unkindness as if it were deliberate bullying can create its own problems, including excessive anxiety in the child who was unkind and an exaggerated victim narrative in the child who was excluded. But dismissing persistent exclusion or aggression as "just kids being kids" fails the children who are being hurt.
Healthbooq (healthbooq.com) covers social and emotional development through the early years.
What Bullying Actually Is
Researchers who study bullying define it by three features: intentional harm, repetition over time, and a power imbalance between the people involved. A child who trips another child once by accident is none of these things. A child who repeatedly calls the same child names, excludes them, or hits them because they know they can get away with it meets all three criteria.
Most preschool and early primary school aggression and social exclusion does not meet all three criteria in the way that older-child bullying does, partly because the intent and power calculation involved in true bullying requires social cognitive development that is still in progress in three and four-year-olds.
What preschool children do experience is unkind behaviour, rough play that becomes one-sided, social exclusion, name-calling, and physical aggression. These are worth addressing directly even without labelling them as bullying.
What It Looks Like in the Early Years
Social exclusion is one of the most common forms: "You can't play with us." At two to three years this is often about territory, routine, or attachment to a particular playmate, not a coordinated effort to harm. By five to six years, deliberate and coordinated exclusion of the same child over time becomes more recognisable as targeted behaviour.
Physical aggression: hitting, pushing, biting (though biting typically reduces as language develops). When it is consistently directed at the same child rather than occurring in heated moments across different encounters, it warrants more concern.
Verbal unkindness: name-calling, teasing about appearance or family, mockery. Young children can be very direct and cruel with words. The emotional impact on the child who receives this should not be minimised because the intent of a four-year-old is less calculated than an older child's would be.
Relational aggression: damaging someone's friendships, spreading social lies ("I won't be your friend if you play with her"), is more common in girls and tends to emerge slightly later in development.
Responding When Your Child Is the Target
Take the child's experience seriously. "Just ignore it" and "they didn't mean it" are dismissive responses that invalidate what may be a genuinely distressing experience.
Talk to the setting. Teachers and nursery staff can observe what is happening, speak to the children involved, and make practical adjustments (proximity supervision, structured play activities) that reduce the problem.
Help the child build confidence and skills for navigating social situations: assertive language ("Stop, I don't like that"), seeking adult help, and having scripts for dealing with exclusion ("Can I play?" or finding another child to play with).
Do not encourage retaliation or teach the child to fight back physically. This reliably escalates rather than resolves.
Maintain contact with the setting to follow up on whether things improve. A pattern that continues over weeks despite intervention warrants a more formal meeting with the nursery manager or school SENCO.
Responding When Your Child Is Being Unkind
Resist the instinct to be defensive. A parent whose child is reported to be excluding others needs to hear this clearly rather than minimise it.
Talk to the child at home: not in a shaming way, but clearly. "I heard you told Sam he couldn't play. That hurt Sam. What was happening for you?" Curious, not punitive. Understanding what drove the behaviour helps address it.
Reinforce inclusion: model it, read about it, talk about how it feels to be left out. Empathy development is a process, not a switch.
The setting will manage this during school time, but consistent messaging at home that unkindness is not acceptable matters.
What Settings Should Be Doing
Preschool and school settings should have an anti-bullying and behaviour policy that is implemented consistently. All staff should respond to social exclusion and physical aggression in the same way, so the child receives consistent messages.
Structured play activities (circle time, paired activities, organised outdoor games) reduce the opportunity for exclusion and build social skills across the group.
If a parent does not feel the setting is taking concerns seriously, escalating to the manager or head is appropriate.
Key Takeaways
True bullying, characterised by repeated intentional harm to someone in a less powerful position, requires a level of social understanding and deliberate intent that most children under five do not fully have. What parents and educators observe in early childhood settings is more accurately described as unkind behaviour, social exclusion, and early aggression, which is nonetheless important to address. Effective responses involve named adults, clear expectations, social skills coaching, and not minimising the child's experience. Children who are frequently excluded or hurt by peers in the early years should be supported both emotionally and practically, and a pattern of persistent victimisation should be taken seriously by settings and parents alike.
