I agree wholeheartedly with the argument raised in this github issue, but I think people are wrong to be skeptical about the concept of a government-issued age verification app. Thing is, the status quo is absolutely worse. My 13yo son likes making Roblox games. Suddenly, some months ago, Roblox made a change where you’re not allowed to share your games with friends unless you do “age verification”, apparently in som…
So you could use an open source app, or government provided one, or one provided by your bank, whatever you trust the most to not be recording data about relying parties and sending it somewhere you don't want.
The version of the document currently on GitHub has heavily deviated from that original intention. This is very unfortunate.
Even so this version is supposed to still be incapable by design of sharing any data with a relying party other than "over 18" and was designed such that the only way for a relying party to determine your identity is to be colluding with the attestation provider, or by colluding with the wallet app.
To attempt to address the first issue they have the unfortunately optional ZKP protocol. The original design assumed that users could find a wallet that they were certain would not collude with the RPs, and was considered a non-issue, but unfortunately it is a huge hole in the current version.