Yes....
In Idaho we had guns at school regularly. Hunting for pheasant in the corn field across the street from the high school or Jr High after classes was a norm. No big deal. (Thanksgiving was the start of pheasant season) In my high school a guy brought ammunition in the form of one live round for his rifle for his Halloween costume....the live round was confiscated for the day. In Jr. High everyone in PE took hunter safety....it was part of the curriculum in 7th grade. In Alabama at Jefferson State Jr College they had marksmanship classes as well. (Never signed up....had other things to do.)
Opening day of deer season for rifle was regularly one of the low attendance day for guys in Jr High and High School. So was Opening day at the County Fair but that's another story.
And yes, we smoked dope and cigarettes in the parking lot....hoping not to get busted by the school police officer.