Y'know, I always find it silly that older people complain about their age and health issues and whatnot. When you hit those milestones, 40, 50, 60, I think you should be glad that you reached them. Some people will never reach those milestones because their lives were cut short.
I had a classmate, only 16 years old and had the most wonderful personality. So happy, so friendly, he knew what he wanted and how he was going to get it. Then he was killed when his four-wheeler flipped over.
I'm only 20 and feel blessed that I've reached that milestone (though small and insignificant compared to Kered's 50th milestone). God willing, I'll feel blessed at 40, at 60, until my last breath.