Different model???
Based on the Canadian example shown above perhaps there is an operation that has been overlooked??
Instead of taking the cadets to the (decreasing number of) Gliding Squadrons, why not take the gliders to the cadets??
When I was living in France there was an operation that had a prime mover winch with a glider trailer with K4 on the back. They towed it to all the centres of population and based it on the local airfield for a few days. With appropriate publicity they kept the glider flying for the duration of the visit with lots of locals being able to benefit from a flight in a glider.
The ACO have lots of unused winches, lots of towing vehicles and lots of trailers from what I have seen of Syerston.
What they don't have (now) is willing volunteers (and gliders)!!
What a really embarrassing and sad (for the cadets) c****** f*** that will go down in the history of the Air Cadet Organisation.