It wasn't meant to be depressing. It's a simple acknowledgement that the body changes with old age. Different people age differently based on their health and habits. My dad for example is 70 and in pretty poor health because he eats like crap and isn't active. Several other people I know who are 70+ are still out in the woods hiking for fun and keeping up with people half their age just fine.
Over the last six years of my life I've lost 5 family members, 2 coworkers, and I found out yesterday that a gun nut family friend, a guy I've known as long as I've been alive, is in the hospital and unlikely to live much longer.
Dealing with mortality has been flooded into my life heavily and I am trying to approach it practically. I try to stay active and will continue to do so for as long as I can. But since firearms are my passion, along with a few other things like hiking and biking, I want to be able to shoot for as long as my faculties allow it.
So maybe that's a better context to frame this thread in. Does anyone buy guns to continue shooting for as long as possible, with the idea that a changing body over time may make certain guns and cartridges unpleasant or impractical?
Think of it as preserving a passion, not dealing with decrepitude.
For example, I don't really care about shooting rimfires and I no longer own a 22lr. However it might be a favorable thing if I make it to 80 or 90 years old. Maybe I should pick up a S&W 617 now in anticipation of enjoying it later.