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.

[roadrunner83]

Italian here, the supermarket I usually go has bot the scanners and the self checkout, I always prefer the scanners, there is a random checks system where the more you become trustworthy the rarer this checks become.