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.
So then the law is pointless as implemented, since parents can already do this. Which leads to the conclusion that there must be some other motivation
Not really, please see my response to towerful’s sibling comment to save me duplicating it.