A lot of learning to fly and learning tactics reminded me of similar lines of thinking to skills I learned in band and choir growing up. Despite not being a sport, music can still involve teamwork, mastering an individual role, and an organized way of interpreting and translating information into action in a way that's not necessarily intuitive. It can also foster a healthy sense of competition, similar to sports. Sports are probably more commonly used as an indicator because it's almost universal for kids to play sports growing up.
Yep, I'm a nerd, and it's worked out pretty well so far.