New U.S laws designed to protect minors are pulling millions of adult Americans into mandatory age-verification gates to access online content, leading to backlash from users and criticism from privacy advocates that a free and open internet is at stake. Roughly half of U.S. states have enacted or are advancing laws requiring platforms — including adult content sites, online gaming services, and social media apps — to block underage users, forcing companies to screen everyone who approaches these digital gates.


While I would trust that for a FOSS app, it would be too easy for a proprietary app to just “backup” your data.
With the physical method, everyone can be sure they are anonymous through common sense.
Sure, but I have 2 counterpoints:
There’s no reason the 3rd party app needs to be proprietary. This is starting to get technical, but my understanding is that you get a cert from the requester, and it’s the combination of that with the state issued magic cert that’s used for validation. The 3rd party app is essentially just a calculator. It doesn’t need any certs of its own
That’s an implementation detail. My argument is that it’s the implementation that’s the real cause for concern here, not the idea