Quite right you know. Unless of course you were very good at reading, I suspect many on this site were like me and had an average reading level of a 10 year old when they 5 but some maybe not. Sometime I think J.K.R has a very stanrge sense of humor, or mabey it is just me laughing at stuff she put in there not meaning it to be funny. But anyway, the quote is right, 4 yr olds may enjoy the magic and action, but there is muhc more to the HArry Potter books than just that, and you would need to of more intelligence than that of an average 4 yr old to fully enjoy the books.
*i'm a registered user, i just didn't log in... lol