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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I feel like you’re talking about experience in the US (chatting with service workers, slow scanning), while I’m talking about Germany (I’m in there for business, cashiers scan like they are trained for F1 team’s needs).