I was walking with some people yesterday, and a guy in the group opened a door, and I opened the one right next to him. He looked at me and said, aw, chivalry is dead, so we went to walk through the next set of doors, and the guy (someone I don't know) opened the door, seemed to snake through it and just let it shut in my face.... can't imagine why i would rather just open my own door although, I do think its nice when people hold the door open for me.