Those alleged 'new' jobs in the Supermarkets are temporary. Technology is being demonstrated at the current time that obviates the need for 'check-out-chicks' entirely. RFID tags that respond with identifying material about the item code & price. These tags currently cost about 40c each in bulk, so they won;t be introduced until the price drops to about 4c each. About 10 years time, it is believed.

There are also less powerful technologies that allow the shopper to scan the items themselves using a 'smart trolley', These are capable of being introduced now, but the cost will fall with time.

It's all about making money for the shareholders folks - sod the customer!