It's wrong to let your child be a bully.
Bob sees his son pick on and bully a classmate.
Bob wants to talk to his son about his behavior.
Bob admonishes his son that he must not bully people and to be more kind.
Bob tells his son that it's okay to pick on his classmate because it will make his classmate tougher.
Bob's son changes his ways and becomes a nicer person.
Bob's son continues to bully kids and develops a cruel personality.