[taminka]

why is that bad?

[Sayrus]

I'm guessing you'd want to separate age verification from identity verification. A hash of your name is as good as your name since you don't change name and you provide both to certain providers, or it can be bruteforced.

[pheggs]

It's a bit better than that, you really have to get access to the disclosure because the hash also contains a salt. But it's a needless risk