When I was in grade school back in the early and mid sixties, our elementary
school had over 600 students.  Everything was very clean and there were few
problems.  In fact, I got to ride my bike to school because I was one of the
patrol traffic officers.  So I got to help the kids across the street.  I
really liked it, too.  Parking my brand new bike at the outside bicycle
rack, I never locked it and neither did anybody else.  No bike was ever
stolen.  Each kid had is own individual locker with no locks on them.  In
fact, I put a combination bike lock on my locker one day and when it was
reported, they made me remove it.  By the time I got to high school, lockers
were shared by three kids and each locker had a combination padlock.  You
were lucky if your car wasn't stolen out of the school parking lot when you
went home.  Try and tell me things haven't changed.

Phil.