Pursue art if anything. It will reset your psychological clock back a few decades and you will be able to do an activity with younger people without coming across as weird.
If anything, a well rounded worldview brought upon by age is conducive to making art that has a grander, more truthful (not necessarily more factual) statement.
Make things (art, food, woodworking, gardens, anything) for the pure joy of creation and playfulness. That seems like a more surefire way to stay young than trying to make statements.
If anything, a well rounded worldview brought upon by age is conducive to making art that has a grander, more truthful (not necessarily more factual) statement.