I'm in with an age floor of 50 but I'd raise it to 60 for a proper old farts thread.
I'd still be in.
Fitness wise, I'm a skinny person generally speaking. Which means I suffered a lot of slings and arrows in my younger days. As the years pile up it has started becoming an asset. I was fit in school, squandered about 20 years by not keeping fit, then got super fit in my middle years and did ultramarathon cycling events. Now I'm back to couch potato, and mentally beating myself about it. You folks who are keeping fit inspire me to get back into it.
I'm still working but have cut back on the hours. I'm extremely fortunate to have an employer who not only allows that to happen, but is actually happy to still have me on board even in a reduced capacity. It's a nice place to be. But my wife has been fully retired for a few years, and I keep inching closer to it myself. This may be the year.