That’s all true, but just to be a bit nitpicky I’d argue some human work has indeed been eliminated by self checkout.

Cashiers main job is to scan your stuff, but in order to do that they also have to stand around waiting for you and other customers for hours on end, and when you arrive they have to do emotional labor of acting cheerful and upbeat

Still I wish we didn’t live in a society where increased efficiency leads to people being homeless with no jobs.