Hmmm, well anyone can have a nice body, at virtually any age. My second eldest brother, who's about 33 or so, just got back into exercising and stuff after many years of drinking and not really doing much of any exercise. Now he's pretty fit, already, and he just started working out and stuff less than two years ago. So, really, I guess it's just on the person's conviction, I suppose. But, it's also each persons build. For instance, my build is different from yours, and so-on. So even if you were to exercise and all, I'm not sure what the chances of our bodies being like each others would be. And not because one works out more than the other. Ya dig?
At any rate, you should still keep trying. Even if you may not get the body you want, it's always good to stay healthy and above yourself. :-)
Oh yes, and the main reason I don't eat red meat, isn't primarily because of its dietary attributes or anything, but because it doesn't always sit well with me hahaha! Every once in a while I'll eat it, because it doesn't affect me. But if I eat it a lot, then my stomach cramps and hurts etc..