[briandear]

Except while I am putting things on the conveyer belt I can’t exactly be bagging at the same time. In France, checkout lines are slower because you have to run from one side of the checkout belt, to load, then to the other side, to bag and then you have to pay; meanwhile people are waiting. That “useless” job increased efficiency since bags can be filled while I am attending to the transaction. Unless you buy just a few things at a time, it’s a huge timesaver.