I'm also trying to figure out if they're abusing niceness or kindness when they cut the line. Perhaps both? They clearly expect people to just let them in and n

I'm also trying to figure out if they're abusing niceness or kindness when they cut the line. Perhaps both? They clearly expect people to just let them in and not resist. One time there was a huge line in passport control to come home. A couple tried to cut in front of me, bypassing about a 15 minute wait. I very nicely pointed out where the end of the line was. It was not kind to them perhaps, but it was kind to the rest of the folks that would have to wait a while longer, especially if folks kept cutting because they kept being held up by other cutters, and seeing that cutting worked. So perhaps it's abusing the tradeoff between kindness to them as people and kindness to the rest of the line.