The best ref's will ref the best competition, development for the ref's is no different to players - Theres a pathway for them to aleague etc. They move out of JDL once they are old enough to ref the older age groups, and if they are old enough they will move out of JDL as soon as they get sign off from the assessor.
You can't centre a senior game till you are 18 and I don't think it matters how good you are. You can't do your level 3 prac for your ref course until your are 18, even if you've done the theory part.
Just think of referees in the same way you think of players and you'll understand why and how they are assigned to games.






