I do not think they have any remote role in parenting anyone about sharing the chosen level of private data with AI for booking. Let people decide if they risk or not with using AI and when/how the terms and conditions are studied (not like current way is better more than miniscule, expecting heavy and long text to be digested at the last step of button pressing that can time out fast). United should not act as educator about people's privacy choices in their choice of systems other than United's.

Checking in is a different matter and understood. That is flight safety matter.