Here is a general framework. Try to beat it of course.
20s: unless pro athlete. Do not go into competitive rec leagues/skiing/snowboarding - injury risk/reward horrific
30s: should be done with alcohol in general. Special occassion fine
40s: should not be renting out your time
The three years of pain and suffering to make it is horrific. That said, once you're through it, the period of time has deep nostalgia
You only need to make it once (if you're smart) so it is engrained as the one period that mattered financially for you