Honestly, it's probably already happening, but I would not be surprised if retail stores that check your ID also have cameras snaping your face and selling that to data brokers.
Anything you can image that is bad with privacy, figure what is occurring is far worse.
The more examples in various situations they can get, the higher their accuracy.
From where? Not everyone even puts selfies on the Internet.
Honestly, it's probably already happening, but I would not be surprised if retail stores that check your ID also have cameras snaping your face and selling that to data brokers.
Anything you can image that is bad with privacy, figure what is occurring is far worse.