It seems to be a mix for me. Yeah, it can become an excuse, but the parts really are wearing out and I have to take it easier in some ways than I used to. Things "tweak" or strain a little easier. Bad decisions are catching up too, no doubt. Like I simply can't do some of what I could at 18-20. Just a fact. But that doesn't mean I can't be the best I can with what I have. Agree with that mentality.
Discussion
Yeah maybe it's different for me, I've never really been an athlete between until the most recent few years never really in shape as a child until my mid 20s. I had times like my time in construction where I was more in shape as a teenager, but still not where I'm at now. I still have about 10% more fat to lose. I'd like to be "skinny" and "in-shape" sometime before I die XD