"My comment about post university outcomes was more to do with how people reared in a bubble : home schooling, then Open University
cope after graduation in the rough and tumble world of employment"
Here's a discussion of a recent American survey into this, which may interest you: blogs.kqed.org/mindshift/2014/09/how-do-unschoolers-turn-out/
IME, school is much more a "bubble" than home education is. For example, my 15yo has the chance to integrate into wider society now, rather than waiting until she has finished formal education. Because she has time on her hands and isn't restricted by spending most of her time with people of her own age in a closely directed environment, she has opportunities to do things alongside adults: clubs, voluntary work, education, and daily life. Sometimes adults play the role of mentors to her. Sometimes they are her peers. Sometimes, in her turn, she helps and teaches them. This makes for a gradual transition to adulthood.
Like many of the young people in Peter Gray's survey, she is already engaged in work which is likely to be relevant to her future career. It would sound shallow to say that this will "look good on her CV". That isn't why she's doing it: the acquisition of actual skills is more important. Still, she does already have plenty to put on her CV.
In The Myth of the Teen Brain, Robert Epstein explains why we do teens no favours by segregating them from the rest of our society, in schools for example.