True & Honest Fan
It depends on their locations. In other countries schools are more likely to have weird mixes due to being federally funded. In Canada it is not unusual to have a school located between an affluent area and a poor area that has students from both areas.I think most of them tend to be exagerating how bad their school is and their experience, due to being a teenager. Most of them, probably experience some sort of isolation from their peers, but also go to Middle Class schools. It's more common for them to be middle class, because people who do live in "ghettos" where gang violence does occur, and there is a risk of violence, are less likely to have computers or access to the internet, along with substantial knowledge to use it.