I'm confused too as to what kind of knowledge you're referring to?

And... you do know, right, that most people don't learn everything they need from their families? Even fairly healthy people from good families end up learning some things that just aren't true, and missing some things (i.e. nobody, and no family, is perfect)!

I *think* (if I'm guessing right!) that the stuff you're referring to... you actually learn by going out and doing stuff in the world! It's trial and error, not something someone teaches you. And, yes, if you're more oriented to "thinking" rather than "doing" (me! That's me!) then it kind of sucks... because you have to go out and bump against people and things and ideas to start to figure out how it all works.

It's kind of like school versus a real job. You learn a whole bunch of stuff in school. Then you get your first job, and find out that 90% of what you learned just doesn't matter, because it's not how people do things in the real world. A mentor, or a really good manager, or just older friends on the job - can help with that somewhat. They can listen when you're confused and point out things you may not be seeing (like, "Oh, the real reason your boss' boss is acting crazy is because he hasn't accomplished anything significant since he got the job, and is worried about being fired, so he's freaking out and expecting someone *anyone* on the team to do something brilliant to save his job and esteem!") but in the end... you have to go and do stuff.

Just a thought, I may be totally misunderstanding what you're looking for!