I'm working on losing some weight by dieting but I just don't like sports. And my health isn't that important to me. I just don't care enough to do it just for that reason. And I never will. Any campaigns to encourage it will be lost on me. I have to die of something eventually :) It's important to enjoy life too. Most sports enthusiasts actually like what they're doing so it's easy for them.
I do go for hikes but not really for the exercise, more for the peace of mind of being in nature than the workout. I also walk a lot just for transportation because I don't own a car. But I live in a small city so distances aren't enough to class as real exercise.