The Internet has alot to do with it.
When forums like this started appearing about 10 years ago alot of the younger one's that would now be up & comming MS's started looking at them.
All of a sudden their eyes were opened and out they go.
In my old hall the retention rate of young ones would be about 40% at very best.
Of that 40% at least half would be going along becouse they know no better....only leaves a small amount pool of Bro's to pick from.