The data seems to contradict that, if Freakonomics is to be believed (and some people don't like them, I get that). Apparently overall headcount actually increased as a result of self-checkout. E.g. cashiers did drop a little but loss prevention more than made up for it.

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nemomarx 10 hours ago | parent [-]

seems like a worse customer experience though. longer lines at checkouts and the self checkout process is unnecessarily slow to deter theft.

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trallnag 10 hours ago | parent [-]

Some supermarkets let customers scan their items as they go through the store with a handheld device

	▲	rootusrootus 7 hours ago \| parent [-]
		My local Kroger variant does that. Or they did, maybe it stopped, now that I think about it. I never saw anyone use it. Intuitively it sounds like it could be handy, but it seems like in practice everyone just kept on doing things the way they're used to doing it.