In the recent past everyone would have known about firearm safety because their daddies would have taught them when they were young’uns...Stevie666
You're right. My dad started teaching me about fire arm safety with a rifle and shot gun when I was about 6 or 7 years old. I also learned at that time that a shot gun can kick the crap out of a little boy. Pistol safety came a bit latter.
Then there was the matter of the military training with all types of guns for four solid years.