We arrest kids and send them to prison when they have fights. After the Colomubine shootings in 99 the official solution was to have a cop in every school. They called them a "School Resource Officer". Supposedly they were going to somehow prevent violence, but what they actually did was terrorize the kids, bring in drug dogs to arrest everyone suspected of having pot on them, criminalize minor discipline issues, and generally do cop shit.

In the 20+ years since school cops have never stopped a school shooting, but they have sent more than a million children to prison, plus god knows how many more to jail or on charges that didn't result in a prison term.