> Teen-by-default settings to roll out globally for all Discord users

Does it mean that even people who reside outside jurisdictions touched by the age verification craze will have to deal with all this?

> use facial age estimation

Surely a kid won't be able to ask someone else to pass the check for them. But let's talk about false positives. If the estimator falsely declares someone an adult, is Discord legally liable?

> submit a form of identification

If you have a picture of an ID document, can you verify that it's real? You'd have to ask the government for that. And at least in one country there is no process for that.

> On-device processing

Oh, a client-side check. Must be secure.

> Does it mean that even people who reside outside jurisdictions touched by the age verification craze will have to deal with all this?

Yes, it's global

> If the estimator falsely declares someone an adult, is Discord legally liable?

Not until a court case on the topic gives us precedent.

On-device doesn't have to mean on "your" device - they might refer to smartphones with remote attestation (like AVF pKVM) which of course are not really controlled by you..