Similarly, people should learn the basics of map and compass before even thinking about using a GPS.
Map/compass is a useful skill but you could be as safe with GPS despite it is a costly solution just carry two of them in two different places with separate storage for their batteries. The same redundancy principle that makes the planes extremely safe. GPS that gives now 5-10 m accuracy could be invaluable device. You still could be on the move in nearly complete white-out while with map and compass you are forced to bivy. I had couple of descends with GPS that won't be possible with map/compass in the conditions (backtrack is the most valuable function of the GPS device).