The reason you wouldn't say something to someone is because you are afraid of the power that you give people along with that knowledge.
Your family is in a a position of power, which is why it can be scary to share information with them. People at OpenAI are also at a position of power, but people who use their services seem to forget that, since they're talking to them through a computer that automatically responds.
Yeah, I think this is an over reduction of personal privacy models, but can you tell me why you believe this?