Sometimes I eavesdrop on people. I could rationalize it - oh, this is good anthropological research for characters I'm writing - but it's basically just nosiness. It also helps me gauge where I'm at: Am I normal?
Realism is not a matter of any fidelity to an empirical reality, but of the discursive conventions by which and for which a sense of reality is constructed.
I'm sure people in the business have said: She's too old for that part. I don't hear about it because your agent protects you from those negative things.