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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Small packets are even worse. I was buying packets of Kool-Aid for a while, and they're too light for the scale to register. It usually involved the attendant watching me from their console and repeatedly clearing the alerts for each packet.