I would say the majority of the drivers in the area where I work and live completely ignore crosswalks.
Cycling is a big thing here, and it is not all unusual to see that quite of few of the cars that are zipping through the crosswalks, while pedestrians are waiting to cross, have bike racks attached to their cars.
And yes, I realize that a cyclist is not a pedestrian....does not have the rightaway just because they are riding in a crosswalk...unless, they dismount their bike and walk it across. But, as a cyclist I would like to think that we are more aware and more considerate to people using crosswalks than other drivers.
Am I holding cyclists to a higher standard? YES!!
And while I have no way to justify or quantify this statement, because there is no give away like a bike rack, I suspect a lot of the drivers blithely zipping through the crosswalks are recreational walkers, runners, in-line skaters, etc.
And they probably get irritated when cars don't stop for them when they are trying to enjoy their chosen sport, but when THEY get behind the wheel of their car, heaven help you if you slow them down for 2 seconds.
I would think that cyclists, runners, walkers, etc....all the folks that want cars to give them a break on the road, would have a heightened awareness and they more than any others, would be considerate towards people using crosswalks But, I don't see that happening around here for the most part.