If people didn't grow old and die, we'd turn into a society of stodgy, inflexible people lacking dreams and unwilling to compromise over anything.
That is a remarkably pessimistic view of yourself and others. Do you really think that you have become inflexible, lost your dreams, and are less willing to compromise as you have grown?
I speak for myself, but as I have grown to better understand myself and the world around me, I have become far more confident and flexible. I have figured out how to steadily improve my condition and that includes improvements to the speed and efficacy with which I learn new subject matter.
I mean to never stop trying new things and taking on new risky endeavors. It's just that with advancing age and knowledge, I can do so with a better chance of success.
BASIC is to computer programming as QWERTY is to typing. -- Seymour Papert