Didn't we have an identical thread a few months ago on this. That one ran to about seven or eight pages too.
I think that the bottom line is that those that are fat and unfit will always find a good excuse/reason to stay that way and that those that recognise the benefits of a healthy lifestyle will continue to be dismayed by their arguments.
For what it's worth, I believe that personal fitness is a personal responsibility whether you be an airman, private, road sweeper or Mcdonalds worker. It's not just about doing the job, it's also about self respect, dignaty, pride...........
BTW, I'm not a gym queen, I just recognise the benefits of not looking like a space hopper or breathing like a sweating bulldog.