You know those drawings you do that the grownups say "that's so silly!" about? What is it that they are saying then? Do they want you to keep on doing those drawings forever -- or do they want you to stop drawing those creatures right then and now? Did you ever notice how kids' drawings are soooo much fun, but when the drawers get older they forget about monsters and monkeys and start drawing bowls of fruit? It happens. The why is one of those many unanswerable questions.