Comment by iso1631

There are many ways to do anonymous proof of age. E.g. go to a physical store and buy a proof of age token, the store will ID you as much as they would for buying alcohol or cigarettes.

But that doesn't meet the requirements which is proof of identity.

As a parent I pay for my child's phone and sim, and thus I have parental controls and I can limit access to discord, or youtube, or porn sites, both on the device level, on the sim card level, and on the home internet level.

I'm all for making parental controls easier to use, if you want to pass laws, enforce minimum standards on companies, encourage or mandate pan-company cooperation (why can't I control my child's microsoft account from my apple parental control page, or an EA account from a steam control page). I'd even be happy with sites being mandated to add say a DNS record saying "this is a site for over 18s only due to $reason", and then I, as the bill payer, can choose to allow that or not.