In the US where a lot of these stores were (Amazon usually starts its pilot programs near its headquarters), that was maybe true a year and a half ago, but now.

In the US where a lot of these stores were (Amazon usually starts its pilot programs near its headquarters), that was maybe true a year and a half ago, but now. Change is no longer hard to find, and the few stores that held on to never accepting cash have closed. If someone is willing to pay with a card, especially if they're worried about COVID contamination, why would they go to a store for something they can buy at Amazon in the first place? The reports seems to pretty consistently say that surface contamination is a much less likely vector for spread than human proximity, and going to a store still involves human proximity.