But why?

Dealing with minors has lots of rules and reglementation, for good reason, and usually the justice system of functional countries don't allow you to bypass those with "don't know, didn't ask", because duh of course not.

Using kids data to train? No no. Talking to kids about certain matters (it's still fairly easy to make those model go into drugs or sex or suicide or whatever). No no.

Health.

The health of e.g. Anthropic PR when everyone realises the product rots young brains.

Since Epstein is gone, the ruling class have become obsessed with collecting photos of children and identifying devices they use. Strange that.