Some ATMs track the serial numbers of the bills you get. Even then, though, it’s more private than a card. Unless they have video of you shoving the bills into a machine for payment, say at Walmart self-checkout, they really don’t know how many hands the bills passed through before they passed through a reader again. Also, good if you can get a store to break the large bills for you. Then, they only know that you paid for a pack of gum with a 100-dollar bill.
Paying with cash is the most private method. I hope it stays.
You already can’t in so many places. I thought it was required to accept cash, but apparently that’s only for paying the government.
Some ATMs track the serial numbers of the bills you get. Even then, though, it’s more private than a card. Unless they have video of you shoving the bills into a machine for payment, say at Walmart self-checkout, they really don’t know how many hands the bills passed through before they passed through a reader again. Also, good if you can get a store to break the large bills for you. Then, they only know that you paid for a pack of gum with a 100-dollar bill.