I feel like you're glossing over a lot of uncomfortable but important implementation details here. None of this works without effectively banning personal computing and tying the whole system to secure attestation (which in practice means non-jailbroken apple & android devices). No thanks.

Can we go back to defaulting to parenting instead of nanny-states? Maybe make "age sensitive" websites include this fact into a header (or whatever) so that parents can decide who in their household can access which content. Instead of having some overreaching corpo-government implementing draconian "verification" systems.

If I want to live under the thumb of a strongly verified "benevolent" dictatorship, I'll move to China. No need to create a second China at home.