It isn't possible for me to know, but I've long been puzzled by the widespread adoption of self-service checkouts in supermarkets and other places. It didn't seem to me that the additional capital costs would really be offset by labor cost reductions. They still require at least one hovering employee to deal with problems and card people for alcohol purchases. In addition, people aren't very fast at using the machines so you need a higher number of machines/user to speed people through the line. We may not see "supermarket cashier" as a super high skilled position, but the fact remains that doing it well, as with most things, does in fact require skill. A good cashier is fast and accurate, checking people out more quickly and more efficiently.
So I'm not totally surprised that they're pulling back a bit, though I'm sure the next scheme promising a reduction in personnel will be embraced as soon as it comes along...
