Why do people bully?

People bully because either they are older than you and they find you a easier target, or because they're jealous because you have something they don't, which leads them to tell lies about you to get everyone against you whether you're in secondary or primary school. If you're a bit different or smaller or bigger than anyone else, they always think they're bigger better and stronger than you. If you're in this situation, the best thing to do is ignore the bully and talk to an adult about your problem.

Well they were hurt like not punched but some one hurt their feelings and they for some reason they got mad and started bullying others