I think "hate" is a bit strong, simple disagreement I hope. But I've been pretty clear. The responses are probably mostly from two kinds of people: people that don't like being called children and people who get offended on others behalf and like to argue for the sake of arguing.
As far as you enjoying books with a target audience of 5th graders; I honestly don't know what to say to that that I haven't already. I can't imagine what a healthy adult could possibly get out of that. I remember those books fondly, but reading them now?
Surrounding yourself with the trappings of childhood into adulthood is refusing to grow up to some extent. Peter Pan syndrome isn't an actual clinical diagnosis, but it seems like an awful way to live, and awful people to be around. I wouldn't choose to hang out with a bunch of 15 year olds, why would I spend time with anyone that acted as if they were? Why someone would want to deny themselves the richness of a full life is just as puzzeling as why they wouldn't expect people to judge them for it and avoid them.
