Haha I had the opposite experience. Growing up I always liked math, science, and programming but more and more I wish I could just spend all my time doing martial arts.
Same. The older I get the more I wish I could just spend my time learning to control my body and doing martial arts and such. It'd be so much more fun.
I still hold a bit of the childish passion in even at forty. I just like moving a lot and doing things minimalistically (is that a term ?). Monk life is neat IMO to an extent.
It's weird, as I'd absolutely love to live as a monk full time. The training, the studying, everything about it. Like, if I ever reach financial independence and don't get married/have kids...that's definitely what I'm going to be aiming for.