It's not rude but there is an etiquette to be followed. The enquiry must be substantiated with proper reasoning as to why one needs to know. Open ended blunt question is rude as it perplexes the other.

Once a man his wife works in a bank and I asked whether she is retail or corporate banking.. the guy was surprised and said I was the first to ask so decently as others directly ask "Is she a cashier ?"

If you've begun a conversation with such an inquiry, it doesn’t necessarily mean you were being rude. Often, the intent behind the question matters more than the question itself. Being curious about someone’s life is natural, but showing empathy and respect for their comfort level is key.

I wouldn't begin a conversation that way .. I guess it could be considered rude if someone wasn't proud of their work or social status .. it depends on the intention of the asker I guess if they intend to be judgmental.. perhaps it is about tone?..

I don't think so at all..........but Americans have a more open way of speaking than some cultures. To me..its simply conversation. A way to show interest in someone else.

I guess some people think so. That is why we have small talk, to ease into things slowly.

I try not to, even if I’m curious, because I was also raised that such questions are considered rude.

No