Bitmob: I don't know about you, but to me, games used to be much more difficult than they are today. When I was a kid, I struggled my way through games like Mega Man, and I enjoyed every second of it. But these days, it seems as though the term "kid's game" means that it will hold your hand the entire way through.
Why are so many "kid's games" so easy? Perhaps developers have misjudged the abilities of our children to navigate and understand game worlds.
A "kid's game" shouldn't mean a walk through the park. It should mean a simple enough set of controls for them to easily pick up, and a friendly storyline. Those two things have nothing to do with difficulty. I've witnessed the obsessive lengths a child will go to when playing a game -- a child doesn't ever blame the controller, or the game design. They just try, try again.