This is very true, but when it comes to a person who is having obvious difficulty such as a pregnant woman, an elderly person or one that is disabled, chivalry should still be important. I'm not referring to just men, but to anyone that is more able to cope with mobility. I often offered my bus seat to someone that was having difficulty standing, and thought it was a natural thing to do. I've held doors, helped people across the street, anything that would make things a little easier for them. Courtesy should never die.