I really liked this post by Jonas David. I also wrote a comment on his site/blog but I decided to publish some parts of it here because I feel they also had some ideas on what I think on writing:
About this post. These were wise words that you stated. I really enjoyed reading them. You are right. As long as your mental faculties are intact you are not in any “prime” thus writing is something you can do pretty much your entire life. And that is amazing. I love writing a lot because of that because it frees parts of you that you though unimaginable and allows you an proactive hope to face the world, the time and space that you are oriented in. It can create dimensions that allow you to feel satiated; introduce to hungers that you did not know before and make you intimate with lost parts of yourself.
Writing is one of the best hobbies to have, because you can always get better at it. With most things you reach a peak, then your body starts to fail you and you’re done with. Writing, though, can only get better with experience, and as long as your mind is healthy you can keep doing it until you die.
The older you get, the more you will have read, and the more you will have done and experienced, and the more interesting ideas you’ll have. And thus, the better writer you’ll be! It’s nice to know there’s no ‘prime’ I’m going to be past, until my mind starts to go, at which point there is nothing else to do anyway.
Read, write, repeat!