I and everyone here accepts that cash is easy. But there is no way whatsoever it is strictly easier than contactless payments. With cash you need to (a) always remember to withdraw and tale enough with you for what you estimate you will need, (b) compute an approximate factorization of the value you need to pay into the bills and coins you have, (c) hope the business has just the right bills to be able to give you your change, and do it in a decent amount of bills (e.g. not trying to give you change for a hundred in 5$ bills).

All this compared to touching the card/phone/watch to the terminal, and perhaps putting in your pin/fingerprint/face ID.

Again, not saying cash is hard, we've all used it and you get used to it. But it's objectively harder than contactless by any definition.

Of course, cash has other clear advantages in terms of privacy, censorship resistance etc.