I agree that GPS makes finding where you are easier but it's a fallacy to pretend maps are hard to use. Anyone with an IQ above room temperature should be able to locate themselves on a map. It's only when you become so oblivious to your surroundings because you only know how ot listen to the GPS that this seems difficult...
Locating yourself on a map while stationary and locating yourself on a map while operating a 3 ton vehicle at speed and looking for a particular turn are quite different things.