^I agree about bullying, and a kid can very well choose to fight back, at which point things may lead to anything up to very chronic injuries. I know also from experience, and if i could i would have reacted - and if i had reacted it wouldn't be just a small reaction. Bullying is a vastly damaging experience. Yet you don't see school shootings/other school spree killing much in Europe, so maybe another parameter is that in Europe most teens don't see their locality as some end-all of things. Though in huge metros like London you again do see much higher violence rate by teens, eg with the acid attacks now, and with gangs since forever. Teens tend to imagine that they are in the center and everything happening is central - so this can increase even more if they are in a location which is presented by media also as some clear epicenter. That is what i imagine, anyway. Eg here, as teens, we would at least keep in mind that most movies present the US, so it isn't like everything around us was the only or the top thing.