Well temporarily perhaps, though I don’t see any moral reason a low IQ has less right to live, or that low IQ’s necessarily imply a person is a less productive member of society. Where would it stop anyway, once the Mensa society has me kneeling and blindfolded it’d be too late to protest. (S)Hitler and the Nazis stained the idea of eugenics and euthanasia, and not surprisingly the ideas invoke strong emotions.
Yes children and any kind of weaponry is a bad combination, my too grandson had those nerf guns that fire soft foam bullets with a harder plastic tip. I think you can see where I may be going, on Christmas day the eldest suggest they play with them, the younger one, who idolised his brother agreed enthusiastically, and I watched as he pleaded to be on his brother’s team, there were only two of them, bless. No the elder one being more competitive wanted them to shoot at each other and lined up like a duel, as he was explaining to the younger that he would shoot at him, and I was out of my seat and sprinting to stop it, the younger one shot him in the face, it left a nasty red mark, missing his eye by about 1/4 of inch, and an infuriated crying older brother so bent on revenge that I had to quickly disarm him. The younger brother was equally distraught. I then had to explain to their mother it wasn’t his fault, and give them both the lecture that they were never to point the guns at anyone. Even then they still tried to appeal that they could shoot each other, but not in the face. I was held my rule as absolute, but don’t know if they ever broke it.
Can you imagine if children had access to live firearms, the idea it’s safer to teach them at a young age to respect guns is an appealing one no doubt, but I am very dubious, and I had an air rifle at 17, and I know no amount of appeals to safety will prevent all stupid antics.