I don’t know how it is where you live, but here in CA the keypad at the counter asks you if you want to give to charity [right now it is muscular dystrophy].
If you indicate “no” on the pad, the cashier is supposed to ask you verbally if you want to give money to that charity. You have to respond verbally before they will allow you to pay for your purchases.
I find it irritating that one has to go through these steps to buy groceries!
me too. It totally pisses me off.