When it comes to horror there's a strange need to analyze. When "evil children" fad happened, there was The Exorcist and The Other and The Omen. People would say, "What this really means is that Americans don't want to have kids anymore. They feel hostility towards their own children. They feel they're being tied down and dragged down." In fact, in most cases, what those books are about is nice children who are beset by forces beyond their control.