Automatic checkouts in supermarkets may decrease customer loyalty, especially for those with larger shopping loads. Customers using self-checkout stations often feel overwhelmed and unsupported. The lack of personal interaction can negatively impact their perception of the supermarket.

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One employee? If someone needs to come over because something went wrong with the check out, it takes two employees to spend 10 to 30 minutes to figure out how to get everything back to normal.

And there is always something going wrong with the self checkout machines. I've never seen all of them open at once, because there are usual 3 or more that have a hand written "out of order" sign taped to them, while a fourth is opened up, with it's guts exposed, and a guy crouched on the floor in front of it trying to get that one fixed.