Why are ruls and laws important?

Well of we didn't have rules It would be chaos police killing, rape, massacre, uprising, uncivilism is a serious thing and in USA it's good that we have laws ( and laws about laws) and rules rules keep it so nobody gets hurt some rules may seem "dumb" but they are always to keep you safe and make you feel safe so I guess you could say rules make sure laws aren't broken and make your enviremont a nice and welcoming place