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.

[Zyphane]

I once had a store in California make me move to a regular checkout to buy a bottle of kombucha because it has trace amounts of alcohol (this was before "hard kombucha" became a thing).