[jeffrallen]

The case against self checkout is simply this: it is better for humans to do complex things like customer service. Automation should be used for non customer facing jobs like restocking. I wouldn't mind shopping around a robot as much as I dislike having my shopping experience dinner by self checkout.

[gadallon]

You are raising an excellent point, which is not only the question of operations, but also how it is to be a customer among robots. We know, for example, that one of the most common accidents of self driving cars is being rear-ended.