You can still have a security guard or two - that just means you need two guards instead of two guards and half a dozen cashiers. I agree with you - the stores

You can still have a security guard or two - that just means you need two guards instead of two guards and half a dozen cashiers. I agree with you - the stores will save more money by switching to this tech and it will be better for the customers. I really hate having to queue for 10 minutes in a busy supermarket to buy groceries - it's probably the worst UX I experience on a regular basis.