I use cash much more than credit cards. I find it funny when I give cash to pay for something. The first reaction is disbelief. The person taking the payment is like, “Whoa, what is this?” Then they have no idea how to give out change. They fumble with trying to get it together to give to me. If they happen to forget to put the amount I gave them into the register correctly, they cannot even get the right amount to give me. Subtraction is a lost art. Then if I give them an amount where I want a specific kind of change back, it’s a separate circus. Say I give them a $50 bill and a $5 bill to pay for a $35 item, they usually try to give me the $5 bill back, like it was a mistake I gave it to them.
We already have a digital currency, it’s VISA, Mastercard, American Express, Discover, etc. like it or not, that is reality.