Why do kids bully?

Answer 1

Because kids are truthful.

They say what they think, and they wont lie.

If they think somethings ugly they will say it.

Also if they see something or somebody different or that's not like them, they laugh and make fun of it.

Its nothing to do with their cowards or they have a bad home life. All children do this.
Kids bully you because they feel an emptiness inside their selves and feel a need to take it on other people for no apparent reason.

Answer 2

there are a number of reasons, the kid (s) could be coming from a family torn apart, they could have been bullied in the past, want to act tough, think they are better than everyone, want power, need help maybe even by a teripist, want revenge, they could be mad and just take it out on another child, children. but don't let some of them fool you, you might talk with them about it and they will stay they will straigthen up but really, they are just smiling underneath that "pretendness" but some kids do see the light, as in they finally understand why it is wrong to bully