I prob have done it before, but also not done it mostly.
Is there some middle ground?
I'm convinced they would not be asking for it if they did not need it or _something_ to prove that you are you, but that's pretty hardcore sensitive information, imo.
Is there a middle ground?
If anyone asks, I send them a jpg/png of whatever (I don't confirm if this is acceptable or not first, let them complain first). Everyone seems to take it without question.
Might be worth giving it a shot.