Kind of, but its not like it makes you a horrible person. I'm very old fashioned myself and I like to behave like a gentleman most of the time. Don't fret, but give it up next time and feel better about yourself! 
What really irks me is when people on crutches on with other disabilities are ignored. This happened to me two days ago, I was sitting in the far back, the bus was full enough that 7-8 had to stand, among them there was a guy on crutches with his entire leg in a cast and he was forced to stand for over two miles before someone finally vacated a seat he could take. I would have given him my seat in a heartbeat.







