Well Ozzie, just because you showed these kids a film of men walking on the moon means they have to believe you? How do you know these people really were on the moon? Were you there on the moon at the same time? If you weren't, then why do you expect the kids to believe what they see on tv?
Everything and anything can be faked and these kids know it. I'm not saying that the moon walk was faked, but it's good to see a bit of healthy skepticism in kids.
It's because of people believing everything that is presented to them, is the reason why so many people became, or remained, JWs. Including us. After all, perhaps if we were as skeptical as these kids, we wouldn't have remained JWs for so long, eh?