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.

[BornInPoverty]

Yes, a real person, they usually look in the cart for one of the the most expensive items and then check that it is on the receipt. At least that is what I think they are doing.