I have a Facebook account primarily for Market Place under a completely fake name. I very rarely comment on things on Facebook, but it feels good knowing that my real name is not being posted. From a glance, Meta cannot confirm this account is owed by Joe Blogs.
Services that enable circumvention is a natural extension. Yes that means going through the same verification process you do with pornhub with your VPN host.
Completely by-the-by, your school networking experience is notably different from mine. Ours are locked down. Kids don't get access on their own devices. They whitelist domains, Google has educational filters, etc, etc. Could somebody red team their way through it? Maybe. Kids aren't.
And thanks for confirming kids can absolutely get around your locked down network, you're just betting they won't bother. So the actual plan is "trust kids not to circumvent it" for school wifi but "can't trust adults not to circumvent it" for VPNs. Pick a level of trust and stick with it.