These people forget high schools had gun ranges - indoor and outdoor - for a very long time. When the kids were white christians and had parents that disciplined them and God was still n schools, kids walked around on campus with guns, had guns in cars in the parking lots, and there were no problems. You could buy guns off mail-in magazine advertisements.
My high school used to have a gun range.
''I brought a rifle to school which I was going to trade for a 1 qt jar full of .22 shells. We were not secretive about it at all. The principal even commented on the quality of the rifle. We, of course, kept them in our lockers, but nobody cared....about 1953