[jebarker]

Not for me. I do strength work because it enables me to keep running/hiking in the mountains and that's good for my mental health. Last year I had to have knee surgery due to a running injury, it's plausible that would have been avoided with stronger upper legs. I also have a kid now so I'm acutely aware of wanting to be healthy in old age so I can have more time with them. As I understand it, preventing loss of muscle mass is an important factor in longevity.