You can fit 6+ self checkout stations in the same space as one or two regular checkouts with the need for only one employee to keep an eye on it. While the time

You can fit 6+ self checkout stations in the same space as one or two regular checkouts with the need for only one employee to keep an eye on it. While the time to check out a single person is longer on self checkout, the overall throughput is much higher, and therefore the wait time is usually lower. My local Aldi(US version) stores installed self checkout. Before there would be one cashier and they'd call for backup if the line got past 4 or 5 people. People usually filled their carts full, so it was very slow. Now it's a breeze with self checkout.