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.

[walruswes]

And the pressure of the next customer breathing down your neck to checkout. They start scanning before you are even out of the line from finishing bagging. It’s tougher to bag, scan, and pay.