You probably can't change it at a moment's notice. What you need to change is the culture by properly educating the kids, then in a couple of generations you might end up not living in a country of gun nuts.

Start by stopping to spread that myth that owing or carrying guns is any good for self defense and explaining that it only makes things worse the majority of the time.

If you're worried about home invasion, you'll be much better off with a strong room and an alarm system. Starting a shooting only increases the chance of you or your family getting shot, or you killing someone you shouldn't have killed.

My TV or my car are not worth risking my family's or my own life for. Not even the one of the thief.