The Academy of Model Aeronautics (AMA) is facing similar challenges to SSA with an aging membership and a need to attract youth. They offer free youth memberships up to age 19 and recruit at EAA Young Eagle events. The following release indicates they have 50,000 youth members.

http://amablog.modelaircraft.org/med...reaches-50000/

It would appear that there is an opportunity to transition these kids to flying gliders rather than waiting a couple of years more to solo in airplanes. Why not models - gliders - airplanes instead of models - airplanes. Not all will move from models, but there are some big numbers when a small percentage do.