Yep. I've seen the same thing. The patrons were in their 20's. You can imagine how uncool it would be for one of the group to say, "I'm not going in if they're going to scan my license."
The people running the joint struck me as unsavory. It's closed down now. Maybe they have enough data and now live in Aruba.
Grocery stores with customer perk cards now likely provide requested data to insurance companies to comply with some nuanced part of the thousands of pages in Obamacare . That way they can base your rates on the foods and things they see you’ve been buying. Nothing is private any more.