> The overhead in handling cash, for some business sectors, greatly exceeds the transaction costs associated with credit and debit cards. What are these busine

> The overhead in handling cash, for some business sectors, greatly exceeds the transaction costs associated with credit and debit cards. What are these business sectors exactly? I assume we are talking about brick-and-mortar businesses only, because cash being problematic in online commerce is a no-brainer, so that consequently isn't what this EFF demand is about. In which brick-and-mortar style businesses is cash handling more expensive than card handling, assuming the same total amount of money is handled in both cases? When it comes to transaction costs of cash versus credit cards in the US, the first thing that comes to my mind are these gas stations offering two prices for the same type of gas: a lower one for cash payment and a higher one for credit card payment. I guess gas stations can be ruled out of being in that ominous list of business sectors?