I think you have a good point there. If new members can see that they can be involved in ALL sides of the club and it's not as difficult or demanding as it might seem then they will support each different level.
Riding in a CCV is a good way to show what is done at that level and a TYRO driver CAN help at an RTV or CCV trial.
Viewing canes from upside down is a hell of an introduction

but shows how safe the cars are and the collective responsibility of safety at the club.