[Teller1900]

They just want to make sure you have some experience in a light aircraft so you know that this is what you want (and that you won't get sick doing it). Any FBO should be able to take you up for a flight or two and satisfy this "requirement." It's the same with making you get a 1st class medical...it's not actually required for the training, but they want you to make sure you can get it before spending all that money. The 2 hour rule isn't hard and fast (from what I hear) but it's a good idea.