This is not going to work for its intended purpose for obvious reasons, but you make a good point about moving the burden from websites to OS vendors. That could hopefully make life easier for everyone. It’s what I think should have happened with the GDPR cookie banner nonsense: require website operators to respect a browser-level “functional cookies only” option, but with the same harsh penalties for those that ignore it.

But the concerning part to me is that eventually, some desperate attention whoring politician is going to take the “protect the children” angle in the future by introducing a bill that updates this to require more invasive spying at the OS level to verify ages more accurately. And of course, the tech giants will eagerly oblige.