Sorry for the double post; I wanted to qualify the final paragraph of my previous post, but since it was already pushing the TLDR threshold I decided to make a new one.
I'm not opposed to exercise. I've lost over 90 lbs in my lifetime, though diet of course but mostly through exercise. It was a major mental triumph for me to voluntarily go to the gym for 45 minutes of painful drudgery 3-5 times a week, but I did it and see the value in it. Of course, in the years since I've gained much of that back. I declared "mission accomplished" and went back to my sedentary ways. I just hate gyms so much!
So, now I'm biking. I ride my bike four miles a day, to school and work. I deliberately take a route that has me ride up a mile-long hill and then back down, even though routes of roughly equal distance are available that avoid the climb. I know what it is to make myself hurt because I know it's good for me, but I get no sense of fulfillment from it, and that's why I can't empathize with the characters in this story.
(On the plus side, I almost never drive. I can actually say "meh" to rising gas prices because they don't impact me that much.)