Comment by ericmay

Handling cash comes with its own expenses too for business owners. It's not "this costs nothing" and "this costs 3%".

Selling something expensive? Well if a customer doesn't have the cash, by the time they go find an ATM (and pay a fee yay!) they probably changed their mind on the purchase.

There's a myriad of reasons to use cards (credit or debit). There's merits to using cash.

But, back to the actual discussion thread, there's no good reason to try and get tourists to use some convoluted app instead of just paying with a credit card.