Hmmm... It's the AMA's fault? Not the invention of the Nintendo and the fact you can't let a kid ride his bicycle all over because you're afraid some pervert might grab him? Urban sprawl? The world has changed and the AMA isn't at fault. Wingshot, you're so far astray, it's not even worth arguing with you. Most people haven't heard about the AMA until they show up at the club asking questions.
Enough of the lame excuses, guys. The real reason they don't sign up is they don't want to. Period. When they get kicked out of the last park, they'll come to the club demanding things. And I'll happily tell them how to go start their own club.
If you want kids brought into the organization, it has to happen at the local level. Have events, invite families and have intro pilots to give them a taste. I don't see selfish parkfliers doing that. I see local clubs do it regularly.