Boy Meets Boy

This book really made me think about our society vs. the way the book was written. When I first started out reading it, I felt that Paul was going to wake up from a dream because the book was written so unrealistically. I feel very strongly that this kind of book will give a view of the world that a GLBTQ child or teenager that is unrealistic. Paul realized that he was a homosexual before kindergarten, how realistic is this? His teacher then wrote on his report card that he "was definitely gay"; how realistic is this? His community and others at the school were also very accepting of his sexual choice and the others in the school such as lesbians, cross dressers, other gay boys, and even bi-sexual teens. In what school would the teachers, parents, and other students be this accepting of a person who is non-heterosexual? Also Paul's parents were very accepting of his sexual preference, acting how my parents would if I would to bring home a boy, if it were be a girl I brought home, they would definitely not react the same way. How realistic is this?
My main issue with this book is just that I feel that children will have a very unrealistic view of how society will view and act towards them if they are part of the GLBTQ group. Are books showing such acceptance good for children to read?