Lacking a supporting environment in more ways than one, these children fall prey to the worst attitude influences that affect their outlook towards life. The motives to engage in such behavior towards children include pleasure, immediate lust-reduction, inferiority complex and material gain (food, money, drugs).
There is an immediate need to address this concern. There is a need to open up the channel of communication with your kids, to engage them in discussion, create a space for dialogue. This will help them become more judgmental about their actions and consequences that follow.