I used the self-checkout today, and it wasn't as hard as I'd thought.
At the grocery store today there was one lane open for big orders and one for small. I only had about 10 items and didn't want to stand in either the big order line or the small order line that was backed up. So I went to the self-checkout, which had no one there. I didn't have to search through a list for the kind of lettuce I had, the machine didn't yell at me for having too many items on the belt. Although it did get upset when I put the bags into the cart, so I must have done something wrong. But I didn't feel rushed about finding the money to pay, the items were packed as I like them packed. It wasn't totally a bad experience.