I often think about the time I have invested into BJJ/Grappling and wonder and ponder the thought what else could have I done.
My list is such:
Learn to play the acoustic guitar.
Learn to play the piano.
Get more secondary education/attend evening classes.
Have saved a whack of money.
Probably would have met/married wife earlier.
Been training in triathlons/marathons.
But then I wouldn't have met the people and experienced all that I have.
WHAT WOULD YOU HAVE DONE INSTEAD? (please list)