Answer:
Most of the time there is an underlying issue that people don't know about. Commonly low self esteem because they feel bad about themselves they choose to tear other people down in order to make themselves seem better. Consider the statement Hurt people, hurt people. So a bully may themselves been abused or bullied in the past and since they experience so much hurt they decide to go and hurt other people.(i hope this helped)
Step-by-step explanation: