I can answer that, sort of. I’ve never worked at one of the super-discounters, but I have worked at a chain drugstore and in many other retail settings.
You are right on both counts, actually. It is a conscious management decision not to have enough people available to work those lines.
There is an advantage to having fewer lines open, in that there will be fewer registers to reconcile, but mainly they understaff the registers because they can.
Because they know people will wait in line.
Because they know their customers are either so price-conscious or so lazy that they won’t go anywhere else.
Occasionally, a store will be temporarily understaffed because of sick-calls, etc., but if a store consistenly has long lines and few registers open, you know it is because it was a conscious decision to do it that way.
In the places I’ve worked that have been truly customer oriented, the management has done whatever possible to keep the maximum number of registers open, including having managers man registers at peak times.
Frankly, I think the understaffing is penny-wise and pound foolish, because people hate to wait in line. If customers have an alternative, they will choose to shop where they don’t have to wait. I think this is part of the reason that Kmart got in trouble. At Kmart (and Target), I have put down my things and left because I wanted to leave more than I wanted the items. That’s a straightforward case of lost sales. I do my grocery shopping at the Pathmark rather than the Shop-Rite, because the Pathmark seems to have a strong commitment to short lines. At peak hours, almost every register will be open, and at all times there’s usually cashiers just waiting for customers. Why would I go to Shop-Rite, where I can buy the same thing for the same price, but I have to wait to do it?
p.s.Frequently, those people you see “standing around” aren’t really just standing around, but you since you don’t know why they are apparently doing nothing, it presents an annoying appearance.