I remember up until 4th grade I would occasionally carry a pocket knife, a friend once dropped his, the teacher saw, picked it up and said something like, "you probably shouldn't bring this to school" as she handed it back to him. I'm in my mid 20s so it wasn't even that long ago. The world has gotten a lot more uptight/ill informed since then. She realized he was a hunter and a boyscout and had good reason to carry a pocket knife, now a days a teacher would find out a kid hunts and assume he's a danger to the entire school.