First for clarity - I'm not suggesting that with age doesn't come wisdom or that "old" people are some how not valuable. Quite the contrary -
As I've mentioned before, my father was diagnosed with a rare bone cancer in the middle of last year. He turned 73 last month and will be lucky to live to his 75th birthday. One of the realities of his cancer is that it is a genetic mutation. If I possess that mutation then I have a 2-in-3 chance of getting the same cancer and I have a 50-50 chance of having the mutation (it's a double recessive)*. I turned 32 a few months ago and I've begun to realize that at some point in the next 3-5 years, I could, very seriously, be middle aged. My father reached middle age before I was born (for those doing the math).
All of this has me considering the existentialism of life. And the nature of how we've structured our professional and personal lives. I'm 32-years old, I don't even have my (semi)permanent job yet in my life. I'm nearly two decades from my maximum earning potential and years away from financial and job security. I got a bit of a late start in life, not going to college until I was 20, but even still - what I've come to realize is - I walked into my potential career path and have structure my life over the past decade, under the presumption that I was going to live until I was 85-90 years old. That I wouldn't be middle aged for effectively another dozen years - when in reality, I might not live past 70.
And then I began to look at those around me, the number of people who have similar career/life structures and cycles. I'm all for waiting until you're a bit more mature to have a family/kids/etc, but are we, as a culture, becoming over-reliant on an increased life expectancy? How many of you have put off things or perhaps any other planned to do certain things when you're older, under the assumption that you'll be older? Don't get me wrong, I'm not advocating a YOLO culture, but I'm beginning to question the legitimacy of planning certain things to occur after your say 50s. Given the degree of heart disease, obesity, and other deadly ailments, it seems like maybe we should bear this in mind.
Myself? I've begun to restructure certain plans and change certain priorities with this knowledge in mind.
*I have not yet been checked for the mutation and have chosen to remain ignorant until after I've completed my PhD dissertation. I don't really need a (good) excuse to quit, right now.