Not at all, though I think many more can (and do) than are given credit for being able to. But I'm enough to disprove the overheated "get a college degree or you'll die!" stuff that's flying around right now.
Fair enough, I'm definitely with you on the point of people not giving themselves enough credit. Unfortunately society tends to beat independent thinking out of us, and where I grew up it was definitely hammered into your mind that you "need" to go to college. I once had a teacher though that took a good 15 minutes aside one day, to lecture us how while this mentality came from a good place, we should really assess our future for ourselves and consider things like trade schools + apprenticeships.