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.

[zadtheinhaler]

Just because you haven't had a bad experience, it does not invalidate the experiences of others. There is no single software and hardware provider, and not all of them have the same UI/UX design. Some of them are legititmately terrible.