Don’t get me wrong, I’m all for privacy. But between setting up the birthdate when creating my children’s local account on their computers, and having to send a copy of their ID to every platform under the sun, I’d easily chose the former.
I’d even agree to a simple protocol (HTTP X-Over-18 / X-Over-21 headers?) to that.
Yeah I’ve heard of similar systems in Europe. It’s similar to two factor authentication. Hopefully something like this could also screen out bots, making influence campaigns more difficult. But regardless, however its implemented I hope it will be easy for not-for-profit operating systems (such as linux distros) to operate