Because you teach them control. Here are things we teach: You don't fight, you get an adult You yell "I DON'T WANT TO FIGHT" You don't punch or kick, if you need to defend yourself against bullies you control the situation Also, simply by learning patience and discipline, it helps to keep them from fighting. Most kids get into fights because they don't have any other tools to deal with things. There was a high school football coach who wanted to stop his players from getting into fights when taunted on the field. So part of practice was for one player to taunt another, and the other player to ignore the taunt and walk away.