Seeker, children should neither be forced to read advanced literature nor simplistic literature. I dont think there's any boastfulness about it. Our suggestions are informed by the books that delighted us as children.
I don't agree with all the suggestions, but that doesn't mean they are wrong. As long as the child is allowed to make up their own mind, we should let them taste the whole range of literature.
At my primary we were restricted to our classes' books. I was not even allowed (by the teachers) to read my brother's books, and he was only two years ahead of me.
Our parents OTOH restricted nothing. I suspect that they used the same 'height' method of censorship that I now use: they did not forbid us from reading anything, but the raunchier or frightening books were on the topmost shelves (which I did not realise until my teens).
I read at least half of Lord of the Rings aged 8, but I would never recommend it for an 8yo. I read it purely because my brother had it from the library, but it was far too old for me and terrified me. I still remember the nightmares. I stopped reading it and returned to it as an adult.
I remember enjoying Tom Sawyer, 20,000 Leagues, The Wizard of Oz and My Childhood (Gorky), as well as Enid Blyton.
I think that today there is far greater choice of literature for a precocious reader than there was when I was little, but that does not mean that there is no place for the classics. The written language of 100+years ago has a richness that you rarely find today, and if our youngsters can master it then that is to be encouraged.