Great discussion!
I'm one of the older members ( 63 in 2 weeks) but I've been fairly consistant in working out ever since I was in my teens. I was fairly average then but once I started training I became a pretty good track and cross country runner and won overall physical fitness awards. I found that I love exercise and physical activity and I miss it if I go more than a day without some kind of workout.
I do most of my exercising at or around home; I find that if I had to go to a gym to work out I probably wouldn't have the time. I usually alternate between running, cycling ( usually MTB but some road cycling too) , weight training and calisthentics. As I've gotten older I've found I'm not as strong or fast as I used to be but I still can perform at pretty high levels. Compared to most of my peers I look about 20 years younger than they do. I can still do over 20 pullups and keep up with teenagers. It's all good!
Kudos to all my brother and sister exercisers , keep up the good work!