Obsolescence, I think, is always a choice, although at times it feels like an inevitability in this youth-centric, media-centric society.
But if you are yourself--a truly, unapologetically, transparently, essentially, appropriateness-be-damned representation of the soul that landed here, then you can never become obsolete, useless, dated.
Individuality, perspective, color is the soul of art.
Messy digging in, rooting around, staying put is the soul of art.
We do not age; we season as we sculpt.