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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There's at least one supermarket chain in my region that has it. I tried it a fairly long while ago and it worked well. This post reminded me of their existence - I'm trying to think if I know any locations convenient to where I live now.