Reading is the most important way to prepare for life.
I don't read young adult or children's books, now that my grandchildren are beyond the age of my reading to them. I read reviews, and so I'm aware of what's out there. But I tend not to read the books.
I tend not to think about audience when I'm writing. Many people who read "The Giver" now have their own kids who are reading it. Even from the beginning, the book attracted an audience beyond a child audience.