Basically the only relevant question, and it's the one they didn't answer

I can guess at least one valid:

* preventing North Korea, China, Russian, Iran and etc. actors from accessing service. They absolutely use workarounds to access AI, e.g. I bet there are companies who are proxy between Anthropic and those countries.

I imagine there will be quite some false positives while identifying those.

Just a few days ago, on Friday, my 15 year old son had his Claude account suspended with a demand for ID to prove he is 18 or older. He had his own Claude Max subscription (he out-earns me fairly frequently in his circle of gaming programmers), and was unaware Anthropic had a must-be-18 rule, as was I. Their email said "Our team found signals that your account was used by a child. This breaks our rules, so we paused your access to Claude." So I guess if you ever ask a question that seems to originate from a teen or less, expect to hit an ID gate.

So now he's a Codex user. OpenAI and Google both have a minimum age of 13.

EDIT: I should note that Anthropic gave him a refund for the whole month that was underway, despite him being nearing the end of it. So good on them.

The "Why did my account get banned after verification?" section gives some reasons:

- Repeated violations of our Usage Policy

- Account creation from an unsupported location

- Terms of Service violations

- Under-18 usage