It's a league game, Smoke.. and not everyone gives a shit about the rules.
In a perfect world, sure everyone should be able to possess whatever they want. In that same perfect world, people would be expected to be kind to one another and live as decent human beings. You don't need to do anything spectacular... just be a good person! Unfortunately people just don't behave that way. Free will and tools as powerful as guns don't always go well together.