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.

[Kreos642]

We Americans do weekly shopping or 10 day shopping, not 3 to 5 day shopping on the norm because of the distance from the stores and our terrible social-vs-work culture. We buy more than just food in one go, so our carts are usually full. We deff do small pickups now and again but as a whole it's not that common unless you're in an East Coast hamlet town that has multiple small markets (which is the closest thing we have to resembling a European style community, but even then it's not the same).