Your experience might contradict your assertions...


I was a marathoner in my 20s. In my 30s I switched to rollerblading because my knees had suffered a number of injuries. I do specific physio for my knees to keep them relatively pain-free for skiing.
In my 20s I played rugby and a few other things. My hands, particularly the knuckles, are now arthritic. One of the reasons I started playing bass was to try to keep my fingers moving.
In part anything we do will cause problems later in life. In another part, we also outlive our service life.
The problem is that our bodies can provide up to about 40 years of useful service. Historically, lifespan was (ignoring infant deaths) not much more than age 40. It is the advent of civilization (clean water, food security, security from predators and outsiders etc.) that provided the first big lift in lifespan (to about age 60). The second big lift came in the last 100 years with the advancement of medical science. In the wild, no animals die of old age.