Chances are, I am older than you
In all seriousness, it's a shame my post only conveyed smugness to you. If you and I had a chance to chat at length a couple years ago, you would have heard every reason imaginable coming out of my mouth to excuse not living a healthy lifestyle. Everything from, I am the way I am to, I don't have the time or money to, my genes will doom me to some other disease before my lack of exercise will matter.
You know what, I am proud of the changes I have made to my lifestyle and I am sure that my pride comes off as smugness and arrogance right now..hopefully when this lifestyle is no longer "new" I won't sound like that. In the mean time, I maintain that if I can do it so can most everyone else out there.
Societal pressure to eat well and look fit definitely played a role in my motivation to live a better lifestyle. Now, I live this way because I like it, but before I needed that push. Whether or not we as a society ought to condemn obesity in the way we have condemned smoking is up for debate - not to say that we should professionally discriminate based on weight, again, let's liken obesity to smoking - but I am pretty glad that the pressure was there so I could get to where I am now.