> If anything it was the 'tap-to-pay' feature of debit/credit cards that is finally putting some death-knell pressure on cash. It's so much faster than paying with a pin card or cash...

Is it just me or aren't debit/credit cards much faster than paying with cash, too? Making change and then dealing with all of the coins is way higher effort than swipe, maybe pin or sign, and move on. And the sign step is going away, at least in the US, soon.