Yeah, the people who like challenges are the people who don't get enough of them.
Generally, if you think the world is a hard, cruel place, you're going to want less challenges, just because you're inadvertently creating so many.
But jeez, think if everything was good and perfect and right. I'd want to take a gun to my skull. When you get to that point in your head, and you see how boring it is, I think you'll start appreciating the challenges a lot more. :P