

The idea of the self-checkout was that you literally just pass by some scanner with a full cart and it instantly displays the list of items with prices and sum. You just need to tap your card or phone on the reader and are done with it.
The implemented reality was very far away from that idea though. That’s why it failed.
Customers are pissed because they have to do the cashier’s job. And they do compensate themselves with some extra price reduction as a system requiring cooperation obviously can’t reliably detect theft. And if you had a detective watching the cams, you could as well just go back to cashiers - which they seem to now do.
In the end this is yet another failed “fake it till you make it” bet on future tech which just didn’t materialize in time. Shops can tank some customer dissatisfaction for a time and then profit a lot from being the first to do the new thing when it becomes actually possible a few months later. But pissing off the shoppers isn’t a good long-term strategy.
Not wrong. But the payment provider literally already has the age. Just force them to tell the shop whether the potential buyer is an adult or not. The solution is literally legally and technically trivial with basically no privacy impact.
So yeah, this is probably yet another case of not actually being about child safety at all.