The fault is not with the school administrators. It is with the system. Bad things happen when you put many children of the same age together. Children need role models and when they don't have them around they look at each other for role models (aka peer orientation) and this is a sample outcome.

The only thing different today is the technology creates new opportunities for those bad things. When I was a kid it was things like smoking, bullying, vandalism etc. As an ex-kid :) and a parent let me tell you, without constant feedback kids just do the dumbest things.