Originally Posted by
icarius
To me, it is considered just plainly rude and is cutting the line. I have told off people before for doing so as its simply not fair to the people waiting in front of you. If you want to cut and ask, you should also do so politely and nicely and not expect any favours. I have told off fellow Y passengers or a F couple. If people follow the rules to stay in line, you should not cut the line
It is cutting in line if you go ahead of someone who is ready and moving forward. If someone gets to the front of a line and is not prepared to make the next step there is nothing wrong with moving past them. If I already have my stuff ready to go why do I need to stand behind you waiting? It doesn't impact your ability to move through the next step once you are ready, and it keeps the flow going.
I often have to let people go past me at the ID check while I try to explain that I'd prefer a secondary rather than show my ID. That definitely is a situation where I won't stop others from going past.