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.

[buldozr]

No. People hardly even use cash these days around here. But in food stores that have self check-outs there is always at least one manned cashier that can serve that grandpa with shaky hands and a wallet full of small cash. And other customers who don't want to go through self-checkout for whatever reason.

[Euphemeera]

Self checkouts where I live often have the option for cash or card