"Reporter Ruth Padawer tells the story of a woman goes to her neighbors with an incredible request—to help care for her son after she dies—and is shocked by their response."
http://www.thisamericanlife.org/radio-archives/episode/420/n...
"Mike and his mom get caught up in a fight that lots of kids have with their parents. Except in their case, due to some very specialized circumstances, they go through the fight in slow motion, over the course of years."
http://www.amazon.com/gp/product/B002V87A4S/ref=atv_feed_cat...
It is also close to a university so some will take courses and others find small jobs on campus, if they can.
My parents didn't usually repeat things to us kids growing up, but one thing they did say over and over again was, "it's not worth moving away from your family." When I had the opportunity to take a fancy job across the country at a "big name" employer, or stay in my home City, ultimately those words came back to me. I'm glad I stayed for many reasons.
I think this also highlights how the increasingly geographically fragmented familial unit is problematic: in a culture where several generations of the same family lives under the same roof, the situation wouldn't be as dire. However, in our culture it is typical to have only small portions of a family living together, and for children to move away and live on their own, potentially hundreds of miles away. No situation is perfect, of course - but it's still something to ponder (and it affects other social groups as well, for instance the elderly).
There was a wonderful American Life a while back on a similar topic, about a mother dealing with her adult son who had a mental disability (can't remember if it was autism or Down), and fearing for what would happen once she passed away. Can't find it right now; will edit this post if I do.