As my awesome mother in law says..... all those "club cards" and membership apps and thingies- How do you think they track you even when you pay cash, and figure out how to market even more of their crap to you?? They know who you are and what you're buying.
Just a thought, lol. Our identities are not attached to cash notes, that is true... But if you are entering your phone number or signing in to programs like loyalty rewards and club cards at places, well... they still are tracking you. And who knows how hackable all those databases are, who knows what exactly they really do with all that data? Oh well. I am paranoid I guess. So is my mother-in-law. There are many reasons we get along, lol. Got to laugh at the world sometimes, or we'll all go crazy. :)