Maybe in the US, but we don't really have a gun culture up here and firearms are generally less of a fear than knives. Plus I didn't really start looking for it until I spotted the odd post about gun safety online. Now TD is one of the first things I notice in a picture.
Point is, if someone who doesn't use firearms, has no real interest in them and hasn't taken a gun safety course knows gun safety better than someone who actually owns a weapon, there's something seriously wrong.