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.
No. As soon as you’re sending in your official ID your entire online presence will be tracked to your ID by the government, Google, Meta and the likes. Privacy is totally gone by then…