This seems to be a topic that most frequent travelers understand...but then some do not.  Traveling can be frustrating, particularly if you are in a hurry - trying to catch a tight connection, whatever.  And, unless you own your own private jet, you will have to deal with all the other travelers, who are most-likely trying to catch THEIR tight connections, whatever.

 Photo:  Shawn Cameron

The proper etiquette really just follows simple logic.  When the cabin door is at the front of the plane, you de-plane front-to-back, and vice versa.

You do NOT charge forward, brandishing your carry-on bag as a shield, in an attempt to jump ahead of those in the rows ahead of you.

Honestly.  Are those people 5?

You allow each and every person in the rows ahead of you to scoot out of their row, then file out in an orderly fashion.

Yes, this takes a long time, and yes, it does require exercising your patience.  But it is polite, and we are not reckless animals.

While waiting, you can practice your deep-breathing, and mental grocery-shopping:  gallon of milk, loaf of bread, and a stick of butter.