Edited to add: I guess this is more for people that are in their 30s.

I went to a small highschool in rural Maine. It was fairly laid back and we didn't have security or anything like that on school grounds. I was a senior during the Columbine massacre. The following school year for the first time ever they had a school security officer, more frequent locker checks and kids had to wear student ID's around their necks. By the time my sister went there three years later you could also only park at the school if you paid for a special security parking pass and they changed it to only Seniors could go off campus for lunch, when previously it was Juniors and seniors. I can't even imagine what they've done since.

My son's gradeschool you now have to buzz a doorbell button at the front of the school. They look at you through their cameras and then unlock the door.

We had to get ID badges my senior year too (c/o 2k) but were never worn by anyone and all they effectively did was tie in to your lunch and library account. Nobody ever was allowed off campus even before the shootings but the penalty was rather lenient for those that got caught. I remember skating though the hallways and the common areas several times after school just because everything was open and the custodians didn't care since we weren't giving them anything to clean up. The year after I graduated I would give my neighbor a ride to school and sometimes stick around to visit with some friends or my old teachers for an hour or so without having to bother with a pass. None of that was a big deal because everyone had been doing it for years. Fast forward two years, my brother gets there, and the place is locked down like a prison. Eight foot tall gates with locks all over the buildings and security circling the property in golf carts all day long. This is also a suburban area but a far cry from rural.

I was out of school by then, but they did institute the badges around the neck the year after I left, before Columbine. The metal detectors were only used when they suspected a student of something or after a shooting near the school. As far as I know high school and middle school students still have a lot of freedom around here, but they have tightened thing a lot with elementary kids.

I can't remember what grade I was in but I was definitely in high school. Our school didn't change at all. Except people who wore trench coats got made fun of afterwards.

I remember kids getting beat up for wearing trench coats, mainly by black students.

No we got extra locks in all the doors. After the Dunblane Shooting.was my last year in school.

It's funny (not haha), I noticed that while your SUPPOSED to check into the office and get a visitors badge and all that jazz at a lot of these schools, half the time the people at the front desk aren't looking up. The doors face the front desk and people can easily just walk right in and on past and they wouldn't notice. Unless it's the "buzz the doorbell" to be let in the door kind of school.