For a person who "for a person who started this cycling thing when over 70", I think you're spot on with your lessons learned. Age-related physical issues can bring different perspectives and priorities - especially related to healing from injuries. Hell, at "just 54" I don't bounce back like I did just a decade ago.

So, enjoy the non-MTB riding and keep up that great tongue-in-cheek/wry perspective. It was an enjoyable post to read.