Oh! I wrote a street kid Holden story for the holiday collection I'm putting together, and , oh, so very depressing. Any Holden prequel would be desperately sad. (Which means I'm not sure I'd ever be up to it. He had a pretty hard life there for a while. Which surely informs his attitude now ...)
Heh, yeah, the up-note ending of a Holden prequel story would likely have to be him finally becoming the high-class of hookerdom (escort). I shudder to think of the before.
It was rough. But it's rough for all street kids. And I'm not sure I'd attempt to write that story because I feel I wouldn't do it justice. It's one of those things I'm so close to I can't write it.