Earlier quoted context omitted.
I actually come across this scenario quite often in retail outlets with poorly designed queue layouts (e.g. an H&M with with 2-4 registers behind a long counter and a single ad-hoc queue lined up in front of one of them). My reasoning is a little different (and a little more charitable I suppose in its generalization about human nature): I don't want to go step in front of the register with no one waiting in it becau…
I'm not sure I understand how that continues for very long. Once the clerks no longer have customers, they can just call people over and the queue will redistribute. If they're not doing that, presumably it's because they're doing something else that takes priority, like replacing the till or handling a problem with a previous transaction. It only seems like it would be a problem at businesses with bad staff.
I've also noticed the acquired habit in more experienced retail staff, when confronted with a queue of indeterminate order, to say, "I can help the next customer in line" and leaving implementation of the next method as an exercise for the customers themselves.
FWIW, I find the best arrangement is a Fry's style mega-queue with boundaries clearly defined by racks of candy, magazines, or other impulse-purchase crap that feeds into multiple registers.