You can do that in the UK already too. Or self scan at a checkout. I think the difference here is really that they're talking about using cameras instead of scanning and it seems not even having a cashier as an option.

I think nearly half of people do some grocery shopping online these days, I wonder if that's putting more pressure on supermarkets to reduce overheads like cashiers. The lower end supermarkets seem to mostly go the other way - with Aldi and Lidl not having self scan checkouts even other than trials.