But keep in mind as well, the proposed technical implementations are key to understanding and explaining how far from 'age verification' the goal is; how far down the surveillance road this all goes.
Age verification is a 'boolean' message to the relying party (or maybe a number of years old), not identity based at all.
If the requirement is 'you have to identify yourself (whispers "for age verification purposes") then the proposal is a requirement to remove privacy, not age verification.