O/K the light has come on - Sorry
Whilst we ride old bikes, primarily Evolution & Pre85, the class structure and the sport is very much a crawling infant. You need look no further than a dozen threads on this site to work understand this. Junior racing is a whole different beast. Junior racing is driven by the parents, not the riders. It has evolved since day dot, is a well established class that has evolved as the bikes have. As the riders move from Juniors to Seniors, there is always a new group of riders (and their) parents to replace them guaranteeing a steady stream of volunteers, committee people, and voices.
Evolution & Pre85 riders have to play double duty, and it is very hard to stay focussed on both. I was in this position for 3 years and struggled on race day to work out wether I was a racer or a organiser and this takes it toll, to the point that this year I have sat out the full year from both committees and racing to try and re-kindle my enthusiasm, and I am not the only one.
Additionally as we drop off the racing scene, there is not another gaggle of new blood coming trough to replace us. What is coming through is riders that want Pre90 and god forbid Pre95, in other words a different generation of riders.
I'll leave the "get on a committee and do it" comment alone. People that know me understand where I stand on this.