How many of those kids had dumbass parents who didn't teach them about guns much less show them the damage they were capable of, probably most of them. Stupidity still doesn't make it the guns fault, people should do a better job of educating their kids and storage of their weapons.
Hell they look at your credit, your criminal record, domestic violence, and a host of other things how much more complicated does it need to be? Unlike thinking like the Insurance agencies until you take the human element out of it there will never be a fix for stupidity.
So what are you saying, only incarcerated people know how to throw down? I beg to differ, I know a lot of cats who thought they were bad because they did time only to get beat down. All it comes down to is you are gifted with the skill and tolerance for pain or your not.