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I never considered self checkout a form of automation.

All it does it moves work previously done by the cashier to the customer.

I don't believe any labor is saved.

Labor is saved by the mere fact that touch screen technology is now so ubiquitous that the training costs of labor for these jobs is so low that they don't qualify as valid jobs any longer. POS systems are now intuitive, so much so that even a toddler can operate one, and that's no exaggeration.

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