We already have digital currency.
The only time I use cash is to buy an occasional lottery ticket. And, I need quarters for my laundry room, because they switched to a PayPal style clone, which I refuse to fund.
Everything else is billed to my credit card, which I pay in full every month.
I forgot one other item...
From time to time I think about buying legal marijuana.
I think that is cash only in Washington state.
I still have not taken the plunge, but I may need my ATM card for that if I do.
So you have no problem with everything you do having a paper trail- which is none of anybody’s business?