An utterly insane idea for a law.

Age verification inherently means identity verification. There's no way to prove your age without first proving that you are YOU, either by showing your face or authenticating with some third party authority, usually government or a corporation.

The idea that you should be locked out of using your own computer until you do this is utterly insane. What problem does it solve that existing parental control tools don't? A generation of parents already trust their babies with iPads for this reason. And what of the millions of Americans who don't have current ID?