When I was in elementary school, my older brother in High School would bring his .22lr rifle ont ehschool bus so he could participate in rifle club after school. I carried the box of fifty rounds for him because I had a lunch box ... and the rounds were 25 cents a box!
Yep, my older Brother was in the Gun Club at his School.
The carried his .22 Rifle to School (in a rifle case) and nobody gave him a second look. This was on Long Island, NY in the late 50’s.