Generally, about 2 years old should be the point you expect a decrease in erratic/destructive behavior, more interest in routine and naps, etc. We didn't even know Boo until she was almost two, and she will be 3 on Thankgiving day. She still acts like a big puppy. She sleeps alot, but that the only adult hing she does. She still is always trying to do things that get her in trouble, and she plays very hard and never has a plan from one minute to the next.