I think a lot of that is going to depend on the teacher. Because if that teacher was my grandfather at wholeheartedly agree. I come from a family of hunters so gun safety is top priority. I was using guns as early as kindergarten. But under strict supervision and under very strict settings. But I was also learning how to drive the combine, and what it took to take care of the turkeys.
But I've seen a lot of news and videos of people who frankly should never have been able to touch a gun... Then you see like the two or three-year-old child in the video. That kid's never going to learn gun safety cuz the parent never learned it.