This is usually how they do it though. First make a dumb law with poor enforcement. People don't push back about it because it obviously won't be enforced. Wait a bit, then say "people are flagrantly violating this law, we need better enforcement". At that point it's a lot harder to say "it shouldn't be a law at all!" because nobody complained when it was brought into law.
There is certainly a risk of what you’re describing with KYC tech that coming online, but I don’t know if that means it will happen.
To play devils advocate; It’s a reasonable demand from parents to control what their children are exposed to. This seems to support that.
This is considerably better than all of those.