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These are still all goal-based examples. You may be too old to ever be a good surfer, but probably not too old to enjoy farting about with a surfboard in some small waves. You may not ever be able to repair the emotional damage yourself and your child have done to each other, but you can probably enjoy going to a movie together.

Etcetera. AFAICS what this article is getting at is simply "do more of what you enjoy"