All a person has to do is take a half hour and learn how to use it properly.
Well, that and actually bring it with them. That was my point really, most people don't carry one. But they probably have their cell phone, and if it has a GPS, it could be useful.
It's not hard to figure out which direction you're walking with raw coordinates. If one number increases/decreases while the other stays relatively constant, you're moving along an axis. If both numbers increase or increase/decrease at similar rates, then you're moving on a diagonal. That would help you self-rescue if you know there's a road to the east or something like that.
I'm not saying a GPS can replace a compass or that you shouldn't learn to use and carry a compass. I was pointing out that even with a compass, you can get easily turned around. Though, on second thought, maybe that's just us experienced people who put the compass away between checks, beginners might actually keep them in hand and follow the compass.