HOLDING THE DOOR….Ezra Klein says he holds doors open for both men and women:

In fact, I basically hold open the door for anyone entering it less than five feet behind me….I’m clearly holding the door out of some odd motivation internal to me, not a deep-seated belief in womanly wimpitude.

Question: is this really the result of some “odd motivation”? Doesn’t everyone do this, just because it’s rude to let a door slam in someone’s face? Or have I spent too much of my life in polite, laid back California?