There's a couple decades between us, Inquiry, but if I hadn't known your age range when you spoke of it on W.a years ago, I would assume (wittiness in prose, sharpness in "content", etc.) that you were around my age, shy of 40.
Of course, writing and the practice thereof is something I took up in my early-20's, simply because I *could* (and WILL!) do it unto my later years. Be it 60 (not that that is "later years"), or 70, or 80, or whenever - I will continue to hammer text for S&G's throughout. And the act of writing, itself, keeps one sharp, too, I think.
For me, though, health is all that matters. I don't care if I pass away at 50, as long as I am in good health when it happens (odd mix). My late-Father wrote off a semblance of health at 55 (which had been in decline leading up until then), and he went through a lot only to pass on at 66. So, for me, I don't care what the death or time (age) of death is, as long as I am happy/healthy whenever it comes along. That, and that I do not see it coming. Morbid to think of, but it's true.
Anyway, hope this "groove" finds you well.
later