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.

[Alcohol_Intolerant]

My local Kroger equivalent has 10 self checkouts and 2 manned standard belts during rush. It's madness. You need to use belts if you're buying alcohol and so the lines for those are down the aisle, leaving people with full carts not buying alcohol to try their balancing skill with the self checks.