When did you graduate

If asking age is considered not polite, how is asking "when did you graduate" , a polite question. Yes, it does sound polite but the underlying intention of asking the question is always to assess the age. Yeah right, I really think you are so interested in knowing when I graduated. Stop being nosy !! Huh!!

Some people have a strange way of asking, when did you "pass out" - well., do you know the meaning of "pass out". It really doesn't sound well here, at least in the US. Please check the dictionary meaning for pass out.

Do I expect way too much for people to be refined? Or do I crib way too much sometimes.

Phew.