Earlier quoted context omitted.
Why is it easier to raise prices/fees/tip % with cashless vs cash payments ?
cashless has higher tx costs, charged by the payment network. This puts upward pressure on prices, even for cash. it is also much easier to spend $250.99 on a credit card than to count out 13 sheets of paper and 9 coins. People went from spending the cash in their pocket to cash in their bank account, increasing demand for products.
I hate how so many just don't have the game theory of commerce in the forefront of their minds. It's always "Boy this stuff sure is super convenient," and "nevermind those crusty privacy kooks over there!"