Possibly where we're headed is an expansion of the first layer, but it already exists. You currently need to use your real identity to do things like access ban

Possibly where we're headed is an expansion of the first layer, but it already exists. You currently need to use your real identity to do things like access banking and file taxes. You also need to provide your age to access services like porn and gambling. The complaint here isn't the use of age and/or identity verification for anything at all. It's using it to access social media. There isn't much in the way of a good legal reason to do this and previous attempts have seemingly been shut down by courts. Children are currently allowed to enter and occupy congregation spaces also used by adults, i.e. churches, parks, community centers, libraries. Private clubs are allowed to ban children if they want to, but have never been legally required to unless they specifically provide adult services like strippers and booze. This also, of course, seems way less workable than real-world versions. At least in person, if a child presents a fake ID, a bouncer can sanity check that they look like the photo and look like they might actually be an adult. 12 year-olds with pocket change to spare can pretty trivially pay a poor person who doesn't give a shit to scan their retinas in Sam Altman's world coin face reader and hand over their private keys and now they've got a fake ID that no website can call bullshit on. Even without that, a kid can easily get an older sibling or friend to share a login, just like my wife's younger sister used to borrow my wife's ID to get into clubs and bars or I used to buy cigarettes and liquor for my friends because I had the earliest birthday. Policymakers don't want to admit it, but it is ultimately up to parents to police what their children do on the Internet. There is no automated system that can't be beaten until they figure out a way to hook up a blood prick to your computer and check telomere length to estimate your genetic age, assuming we don't figure out how to reverse that, and even that can't prevent a child from shoulder-surfing an adult.