I think this is what my German electronic ID card does. The card connects to an app on my phone via NFC, a service can cryptographically verify a claim about my age, and no additional info is leaked to the service provider or the government.

But that doesn't verify that the person using the ID is the person that it was issued to.

I think this is actually the correct way to move forward.

We should be able to verify facts about people on the internet without compromising personal data. Giving platforms the ability to select specific demographics will, in my view, make the web a better place. It doesn’t just let us age restrict certain platforms, but can also make them more authentic. I think it’s really important to be able to know some things to be true about users, simply to avoid foreign election interference via trolling, preventing scams and so much more.

With this, enforcement would also be increasingly easy: Platforms just have to prove that they’re using this method, e.g. via audit.