The language in the book, or the style of writing is not the thing attracting young brains or young souls. The thing which is mostly appealing people is the possibility of any hidden power inside us. It is fantasy of any children, to realize that he/she is actually the the strongest, the smartest, the youngest, the most beautifull, etc.. Therefore, JK should not take this fantsay from children. Harry Potter should loose his powers, somehow he should be no-magical. However, he should understand that he can still survive.