>The real argument here is that a school's principal is not a legislative body, and his authority to make those choices is completely illicit. It isn't entirel

>The real argument here is that a school's principal is not a legislative body, and his authority to make those choices is completely illicit. It isn't entirely if you're talking about minors. There's a duty that the State has in a paternalistic sense to care for children, and children have a more limited set of rights than adults. Where it gets interesting is this is intruding into private spaces where the parents are the ones with those rights, not the school. For adults in college, it's more like a corporate environment and they can decide themselves what tradeoffs they want. It's possible there is some overreach or discriminatory factor there.