I've noticed a number of people here hating on fat people for letting themselves go, having no discipline, etc, etc... I'm not saying it's wrong, as I'm not the most politically correct person you'll ever meet.
I can't really empathize in their exact situation since I've been single digit bodyfat and reasonably muscular my whole life. Right now I'm currently 230lbs, 8% bf, @ 6'3, and I've pretty much stayed that way the last 13 years or so with minor improvement. I work damn hard at it too though with proper nutrition, exercise, research... it's been a lifelong lifestyle and obsession.
But... I can empathize in other situations where I haven't had razor sharp focus and discipline. My career aspirations didn't come in to focus as soon as I'd liked, while my friends were leaps and bounds ahead of me in that department. I'm 29 not married, no kids, it took me much longer than most to get my university degree... Whatever, I'm not feeling sorry for myself I just trying to drive home a point or different perspective.
Is there any thing in your lives that is lacking compared to your peers with respect to lack of drive, discipline, time, or focus? It could be anything; money, career, relationships, education, recreation/leisure, travelling, happiness, etc...
Is being in shape a better quality to have than the others, or are we just full of pride? Not that there's anything wrong with that.