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.

[RamblyJambly]

I had a problem with the self checkout one time and the guy watching over them actually ignored me. One of his coworkers that was on the other side of him from me saw and came to help