Also, consider some of the old-timers, like WWII or Korean war veterans and many of them own firearms and won't hesitate to use them if someone breaks in their home or if threatened by an attack. Probably most wouldn't go through any formal training at this point in their life but are they ok to use a firearm. Who really knows...probably, maybe, no, yes, good enough, etc, etc. Just saying...more to it than meets the eye.