The one part I was curious about was who would be responsible for this? The app or the OS? The article says the app makers, which I think is correct.
In the US, Meta in particular is pushing for OS-level age verification [1]. What a surprise. The company without an OS wants OS makers to do it and, more importantly, to be liable for it.
Many purists believe such a move is bad for freedom of expression. I'm sympathetic to this argument to a degree but I think we've shown that it's been a failure. More to the point, whether or not you agree with age verification, it's coming regardless so the only issue really is what form it takes.
This will go beyond social media too. I'm thinking specifically of gambling. I'm including crypto gambling as well as sports betting and prediction markets. In the real world we require you to go to a casino to gamble and you will have your age checked at the door. We've just been removing the barriers to gambling addiction and extending it to minors. My prediction is that this will change.
For anyone who thinks teens will just get around this with VPNs and other workarounds, of course some will. Not everyone will. And blocking such measures will get better over time. Also, network effects will come into play. What will it do if half your friends aren't on social media? What about 75%? 90%?
Also, this is going to cut into advertising to minors. That I think is a win. Companies won't be able to target minors in affected markets. Meta (etc) will be legally responsible for making sure they can't. That's good.
Just like tobacco bans to minors aren'100% effective, neither does this.
[1]: https://www.yahoo.com/news/articles/reddit-user-uncovers-beh...
There are two outcomes. Either the implementation is freedom and privacy respecting and very easy to bypass (effectively just a setting the OS passes on to a website) or it comes with strong technical and cryptographic guarantees which destroy privacy and freedom (identity verification, OS and hardware attestation). There is no middle ground.
The comparison to ID checks when buying cigarettes is missing the point. Human ID checks have few downsides and are relatively high cost to fool.
In the real world, you show your ID to a human and they look at the date of birth and photo. They don't copy or photograph it, they surely won't read let alone remember anything else from your ID, it would be very obvious, costly and dangerous for a criminal to install a hidden camera and secretly record everyone and their IDs. We also don't attach the ID physically to your body and assign an individual police offier to follow you around 24/7 so you don't try to tamper with it somehow.
On the Internet, a securely (safe from bypasses) implemented age verification system makes sure your device is owned and used only by you, that you can't lend it to somebody, that you can't modify or inspect it... It also enables some level of reidentification for catching and prosecuting you if enable access to a minor despite this.
These are two wildly different situations.