That was one of my first jobs back in 1975. Only we didn't drive, this was before the Taylor Dunn electric trains. We had to push hand carts all over the Hub.
That must depend on the person and hub. I was in the smalls for about 3 days, and I was going crazy. The smalls is where the light duty/lazy people go at our hub. Not to mention it is on the second floor in the building, and with no AC, it gets hot in the summer. Standing in the same place, scanning, and putting in bags was not for me. I needed interaction, and movement.