> The only people that consider not talking to service agents or cashiers an improvement in service have social anxiety issues or something similar.
Or they are in a hurry. I will take the faster option every time and that usually means no human.
> A checker at a grocery store actually does all of the work for you.
What if there was no work to do? Amazon is exploring that concept and if it works as described (I haven't used it yet, but have walked by and it seems to) seems objectively better in every way.