This reminds me of several articles I've read. One, in a model airplane magazine, made exactly that point.

Let me tell you about just one more. This was from Reader's Digest, many years ago. I've forgotten the source of the study, but the observation of the study was that the most successful people, be they from industry or the military, shared a common experience. That experience, according to the study, was participation in high school marching band. They reasoned that the discipline to march and the talent to learn an instrument were enhanced by the teamwork and blah blah blah....

So, of course, the reader is left to draw his own conclusions. Personally, I think if you teach music and manage a marching band, you're inclined to place great importance on those activities. Do you suppose the same might apply to hobbyists?

Best wishes,
Dave Olson