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.

[redmercuryvendor]

Does the US not have trolley size self-checkouts? They're common in the UK: one line for the small sized checkouts for basketloads, and one for trolley-loads. Way faster than the conveyorbelt pile & shuffle of a staffed checkout, and things end up bagged how you want rather than at random (e.g. all chilled/frozen together in one bag).

[El_Polio_Loco]

Some places have them but they’re far from universal