Wow, here is a generational differences study in action. When I was growing up and was a young man into adult hood, there were NO places that I can think of that a knife was not supposed to be. There were some municipalities that had ordinances on the books regulating knife size for carry, however, I don't recall anyone taking them seriously when it came to pocket able knives. We carried our trappers and our Sod Busters and our Gerber Folding Sportsman and Buck 110's any place we pleased without thought. A common boys game in our middle school was mumbly peg. You mention a multi tool being a problem in your school....when I was in school, multi tools had not yet been invented, however we did have access to SAKs but generally thought of them as rather sissified, something that you might have in college just so you could have the cork screw when you needed it to entertain lady friends in your dorm room. I am 58 years old and grew up in the Chicago Suburbs and went to college in Champaign, IL The first time I was disallowed entry to anyplace for having a knife was the 7th district court house in Markham, IL in approximately 1995 when they put in metal detectors. I was very surprised that my Case Muskrat was not allowed entry, told them they were nuts and paid my traffic via the USPS. Second time was at the St. Louis Arch in 2005. I have not flown commercial since 2001 so that is not an issue for me. Ridiculous school rules have gotten our young men totally out of the habit of carrying a knife. I would not risk putting a knife in my pocket if I was subject to the draconian rules of schools today that is for sure but I would be a lesser person for it.