Yes I do carry cash. Sorry to disagree but it is not King.

The last time we had a major power outage - everybody closed. Their debit/credit/tap machines didn't have power so they closed. Cash payments don't work if the businesses themselves aren't open. 2ndly, enter Covid-19; a lot of businesses stop taking cash because of the possible virus contamination.

Cash is not King. It is valuable and flexible and will be taken in 99% of the cases and is often preferred over electronic payment but it has severe limitations.