Earlier quoted context omitted.
It helps with accessibility, not with the problem that cashless is dangerous for democracy. Everytime you pay anything with something else than cash, it is recorded: the amount, the time, the place, and the nature of the thing you buy. There is no way to go to a gay bar (or another place loaded with consequences) without a trace. And this is needed for human dignity. There is way to support a controversial political…
Credit cards actually don't need electricity or the network to be up. That was kind of the original point. The business that you're paying trusts the card issuer to pay them on your behalf, so they can communicate the payment details to the bank asynchronously, and after supplying the paid for goods or services. But the rest of your point stands. Cash grants a lot more flexibility.
But even if it did, how would visa process the recipe without power ? Their money is all bits.
Cash is cash, even when there is no accounting.