I happen to prefer not to always have my location tracked by a cell phone company or my transactions recorded by a credit card issuer. The ability to be anonymous is a vital component of freedom. Plus, you can still pay for things in cash if something has wiped out all local network connectivity. And yes, I have been known to pay for gas in cash—not always, but now and again (and an EV doesn't need gas, anyway, so that question is increasingly irrelevant).

I do not require or expect other people to have the same priorities that I do.

When I decide to visit a park and arrive to find that I can't pay cash, it's a problem. Visiting a park is a transient event, there does not need to be ANY permanent relation between myself and the park operator. There is no reason to require trusting some random site with payment details, generating another set of account credentials, and installing some mystery app that wants way too many permissions just to visit a park.

Do you like the idea of all our payments for everything going through a private duopoly who takes a cut of every transaction?

We don't have a digital option that's open or private.