They have just put in self-service checkouts in my local Gainsborough Aldi store.
When I went in all the tills were closed except the self-service.
I asked which till was open and they said these pointing to the self-service.
I said I had cash and looked at me as if I did not have a choice, they did open a till up
But if I wanted cashback or some carrier bags, you cannot get from these from the self-service machines so why push them onto the people who don't want to use them?