Welcome to Free Republic!
You write very well for a 13-year-old. You could have a career as a writer if you keep it up. You make some great points.
My kids and I have read all the Harry Potter books, although I made them wait until I thought they were old enough to handle some of the content. I don't think the books are appropriate for very young children. Before I let them read the books, we had some talks about the difference between fantasy and reality, good and evil, religion and mythology.
Uh, maybe, aside from punctuation.