It isn't quite dead. Not yet. On life support and sinking fast though. Which is a huge shame on so many levels.
The bigger aspects of chivalry are still there. If a woman, any woman, is in distress, most guys will still stop and try to help, or at least stand around feeling awkward. That is so innate in guys that it will never die or be beaten out of them. Or, at least, I have no desire to live in a world where it has.
The formal, polite, sweet gestures of chivalry have all been put down one by one, mainly due to the rise in equality. Guys no longer pull out your chair for you and wait for you to be seated - you have arms and are not a helpless little nothing that needs coddling. We have been told that for so long we mostly believe it. You are equal. So you can open the door yourself. Hang up your own coat.
Giving up a seat on the bus to a lady? Last time I tried that I got lectured for ten minutes for being a sexist pig, by the woman seated across the aisle. And the woman I gave up my seat for, who was now comfortable, was nodding and agreeing! Never again.
Within a couple, it can be different. Usually isn't though, since most guys simply don't know the courtesies required, and dislike watching the films that would teach them.
There is an old saying: "Accepting a gift honors the giver. Refusing a gift diminishes the recipient." By refusing the little courtesies a guy offers, gals, you demean yourself. And make the world a shallower, coarser, colder place.