This is so true and well said. Of course, the other issue is that there's ONE school in the country that specifically caters to PG kids. That's it. And like you said, resources are limited and these kids are too far outside the norm for schools to cope or deal with the situation.
I do know a PG mother who has a son at a boarding school this year. She said that he wasn't ready socially/emotionally yet for college at 13-years-old. She said that he's done a bunch of courses online and in person at a nearby community college and state college. She said he got a full scholarship to attend as a post-graduate. I don't know which boarding school her son attends, but it's probably one of the top boarding schools since only the top boarding schools have the money to offer a full scholarship.