The graph is disjoint. I remember when I was in school and teachers were asking me what I wanted to do in college, and I had known not one single professional individual ever, other than teachers, with a teacher/pupil ratio of 33/1. How was I supposed to know?
The problem with being poor is that everybody else you know is poor and also doesn't have an iota how to get out of it.
They know. At least, they have a rough idea. Of course, it wouldn't be much help to have your mother say "learn to read" if she can't help teach you. The other problem (which will be well-known by many hn-ers) is that trying to get out of is discouraged.
Would you make friends with a guy who wants to study in another zip code, or a guy who wants to stay in the 'hood? If you think you are going to stay in the 'hood, then you are best hanging out with a fellow drop-out.
That's the economic explanation for the jealousy and sometimes hostility that social climbers get.
Whether or not the economic explanation is correct, it's hard to argue that a black kid in a black school who acts white may get beat up for it.
The problem with being poor is that everybody else you know is poor and also doesn't have an iota how to get out of it.