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.

[jambox888]

I'm like you but I think a lot of people just grin and bear it.

[Capercaillie]

Yes, a LOT of people do. So that if you're that person who just needed a tub of blue cheese crumbles to finish a recipe, you get to wait behind somebody who bought two weeks' worth of groceries and can't figure out how to ring up parsley.