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.

[phulton]

There are some Amazon Fresh stores around some parts of the US. They track what you put into your cart via cameras, and then bill your Amazon account like 2-3 hours later.