Only for VPNs whose payment methods verify that you're -ge 16

Can't seem to link the section but down this page are some options that don't require that: https://mullvad.net/en/pricing

Wow, send cash along with the token they generate (to associate with your account). That's a new one... Interesting!

There are many free VPNs.

Yeah, I guess I was thinking 15 is pretty young. Presumed a majority of minors using VPN's have a parent with a family plan.

I, of course, was not one of those people -- so maybe I shouldn't presume.

There is Tor too.