When I left college I thought - based on a staggeringly inadequate understanding of how the world worked - that I might like to go into book publishing.
My specialty as a collector is books that almost have value. When I love a book, I don't buy the first edition, because those have become incredibly expensive. But I might buy a beat-up copy of the second edition, third printing, which looks almost exactly the same as the first edition except that a couple of typos have been fixed.
More than fantasy or even science fiction, Ray Bradbury wrote horror, and like so many great horror writers he was himself utterly without fear, of anything. He wasn't afraid of looking uncool - he wasn't scared to openly love innocence, or to be optimistic, or to write sentimentally when he felt that way.
It's not really possible to open 'The Casual Vacancy' without a lot of expectations both high and low crashing around in your brain and distorting your vision. There's no point pretending they're not there.
The year after I graduated college I had a job in a library. When people underlined passages in the library books, or made notes in the margins, the books were sent to me. I erased the lines and the notes. Yes, that was my job.
A lot of young-adult authors, great ones, have tried their hands at literary fiction, and not a lot of them have succeeded. Not even Roald Dahl could switch-hit, and not for lack of trying.