# Are we allowed to ask Mathematics StackExchange users where they are from?

Are we allowed to ask Mathematics StackExchange users where they are from? (Of course that doesn't mean they have to answer that question) What do they do for work? and other questions, like how much time they put in usually to answer people's questions?

If this is Okay, how can I do so privately? I don't see a personal message option on the site.

I'm just curious.