I think there's a dearth of younger riders for 3 reasons:
Motorcycle license needed in many states
Lack of discretionary income
and most important, they don't learn how to drive a standard transmission!
I agree but I will give you two more reasons which could actually be considered one. For the most part (always exceptions to the rule)
1. I believe younger people are lazy and want things handed to them therefore they won't work or work just enough for what is needed.
2. Cost of a new SS is A LOT more then a car and a lot less practical for a person of young age.
RNJ12