You may fall short of the definition of "well rounded!"

But let me assure you that it is possible to figure out the basics when you have to volunteer to help be a line "judge" when your third grader gets on a soccer team.

I had to learn some rules really fast.  My role seemed to be keeping track of who kicked the ball last so I could say which team could get the ball after it went out of bounds. (You may remember I wasn't very good at this.)

Maybe you come to your role as a  "seriously disinterested observer" naturally.