Counterpoint: I've found that using self-checkout lanes lets me get out of the store a lot faster than waiting for a cashier. People use them because, in gener

Counterpoint: I've found that using self-checkout lanes lets me get out of the store a lot faster than waiting for a cashier. People use them because, in general, people hate waiting. Of course, while Walmart has 30 cash registers, there's only ever 4 staffed at any given time, so you could argue that if they just had more staff they could get people in and out at the same speed.