today's great quote

"I believe that kids as well as adults are entitled to books of no socially redeeming value."

This is from R.L. Stine who wrote the Fear Street series of scary books for kids. There are over 100 titles to get terrified by. Critics have said that his books aren't good for children. Thus the quote above. I seem to remember the same critical concern about the Harry Potter books. What is it about kids and reading that makes people so nervous?