Originally Posted by mstateglfr

Ok, so one of my examples is good for 2 decades past 'school years' based on your estimate. There are tons of men's leagues where I grew up, and many are specifically 40+.
But either way, the point was that there are a lot of 'school years' sports that people can continue to participate well after their school years are over.

Again- running, swimming, tennis, volleyball, golf, cycling, basketball, softball- all these can be played for a long time past school years. How many decades they can be enjoyed is obviously dependent on how each of us ages.