My brother's step son is one of these. The kid is real smart. Flew through college and popped out getting a job at a large financial firm. I think he started off making about $70K. I'd be surprised if he even knows how to put gas in the car. I know for a fact that he doesn't even know how to check his oil. My brother said so.
His parents got divorced when the kids were little and the father is a pansy too. So the kids were basically raised by the mother (my brother's wife). He can't check his own oil, but he can tell you what the newest fashion of men's clothing is.
