[lupire]

There are too kinds of automatic: logic automation to replace worker training, and physical automation to replace worker movement.

Self checkout is logic automation, making the checkout job easy enough that customer can be trusted to do it.

Checkout used to have two jobs: a checker and a customer standing around waiting. Self-checkout merged those two jobs into one.

[Teever]

Three jobs in many instances actually. The bag boy would put the products into bags and possibly walk it out to your car.

[mdrzn]

This is a US-only thing as far as I know.

[tough]

Mexico has those too