For a lot of businesses, the overhead that comes with handling cash isn't worth it. Especially smaller businesses that would really rather not deal with the ris

For a lot of businesses, the overhead that comes with handling cash isn't worth it. Especially smaller businesses that would really rather not deal with the risk of being robbed or having a staffer mugged for the nightly drop. Credit card processors charge a processing fee per transaction, but the overhead of physically managing cash and so on isn't free. I expect many stores will decide to stay cashless for that reason, no matter what their peers decide. Being cash-friendly or cash-only is not free, even if people do tend to think of it that way. As for SF's law, I think it's worth bearing in mind that it was originally written as a shot at the Amazon Go stores.