So, your point is?
Having been in Europe -- which is held as some amazing model by Herr Klinsmann, Senor Reyna, et al -- I didn't see too many high-level youth coaches working for free.
Agreed, the SOURCE of their income wasn't fees. It was a subsidized club structure that identifies, buys, develops and sells for-profit youth soccer players. And sells tickets to matches. And advertising to sponsors. And collects TV rights fees. We are not there yet. Nowhere close.
My larger question would be, what's the difference between paying coaching fees, or a music teacher, or a math tutor, or ...
Whatever it may be.