I think I've told this story here before, but it is apropos.
I was working on a construction job on a big ranch in Texas, and the owner had a five or six year old daughter. Her best friends were the two slightly older sons of the ranch foreman. The three of them would walk around in the woods alone barefooted (in rattlesnake/copperhead/cottonmouth/coral snake/fire ant/scorpion/god knows what else country) with a 22 rifle, shooting things. They had 2500 acres with two huge lakes (which had alligators in them) to play in.
The last I knew most of them were still alive. (well, all of them, but I had to make it funny). Saw the girl on a hunting program her daddy produces for the hunting channel and she still had all of her limbs and stuff when she was 12 or so.
All three of the rich guys kids had their own unlocked gun cabinets in each of their bedrooms. Full of guns. The six year old ( the youngest) had a custom downsized Remington 700 that fit nicely in her little girl hands.
All I can say is that Texans take "survival of the fittest" quite seriously for religious folks.
Kids who live around guns should indeed have gun safety courses, but I'd prefer ones that are not taught by highly biased nuts.