What opportunities for advancement are there within the Corps?
Promotion? Everone wants it, and there isn't enough to go around. This means you have to shine (Your boots!) and generally stand out in the squadron. I know a Sergeant who was promoted from Cadet rank to Corporal at 14 and was giving orders to 16-17 year olds! It goes like this:
CADETS (CDT)
CORPORALS (CPL)
SERGEANTS (SGT)
FLIGHT SERGEANTS (F/SGT)
CADET WARRANT OFFICERS (CWO)
Not everyone reaches CWO, but when/if you do, you can be assured that you will be taking part in the actual running of the squadron!
Eventually, you'll have to leave when you reach 22, and believe me, I have known a lot of cadets who have left due to work/schooling pressures, and they did not want to leave. It's that much fun!