Who needs to be educated in the etiquette of queuing?
Queue barging is a very offensive thing to do and it normally leads to trouble, badmouthing, grumbling, dispute, low muttered complaints, and oftentimes shuffling to close gap on anyone looking to barge ahead. In simple language, it is rudeness!
We may not seem to realize, but the absence of proper queuing is a big issue, especially in places where an orderly queue is an indication of social decency. As one writer says, the root of the problem lies in more than one person wanting the same thing at the same time. In some places, the convention of standing in a nice, orderly line is absent.
Proper queuing is about fairness and impartiality and things that prevent resentment. It is the most sensible thing one can do when in a queue. Are you equal if I say, taking turns is the only reasonable answer?