I legit had aircraft sheet metal snips and numerous exacto knives in my locker and a leatherman on my person most of the time and it wasn't a huge deal? Hell, I needed the leatherman to open the hood of my shitbox car. In contrast today, one of my kids brought a toy knife to school a few years ago (because he thought it was cool, great learning opportunity for a young kid about "the man" I suppose) and you'd have thought they caught Bin Laden or something?
Perhaps I was just lucky, but it feels way different now, though there seems to be a lot less bullying.