Not to start a whole different discussion, but thinking about that reminds me of Zyuranger. I enjoyed watching bits of it as a kid, but after watching the GUIS subs last year, I was kinda freaked out by how dark and insane that show can be at times, and how almost all of it went over my tiny kid head and I blindly loved it.
One of the trials for a show like Gaim is to how keep the younger audiences interested and "in the loop". They don't really have to understand and catch everything, they just have to be invested and have their attention focused on the show, but not get bored by the drama and the dialogue bits(which there is a lot in Gaim).
Not to bring up an old topic, but one of the failings of Go-Busters is that the kids are just not watching. Go-Busters failed to hold their interest, and its major audience are people aged 20 and above.
I've found that definitely the biggest draw is the visuals: The action, the beauty of the suit and props, etc.
Beyond that is a little complex. Recently I watched Shinkenger with the nephew.
Spoilers:
[HIDE]It was really easy until I had to explain Juuzo's random interruptions, Takeru's almost-temptation into Gedou, and the team's slight conflict between Kaoru and Takeru[/HIDE]
Basically, once they get invested, they're gonna be curious about everything, and once they are, you'll have to be able to explain to them the differences between good/bad actions and good/bad people.
Here in Gaim, I can see how it can be done, but since the situation changes almost every episode, I think it's imperative to let the idea of who's doing good and bad, who's actually good and bad, and what side each person is on sink in throughout the week.
Problem is, I don't think a lot of parents will bother going through that. Also, Micchi. I don't think a 7 or 8 year old is ready for the idea that some of their friends may be duplicitous lowlifes. Or the idea that you can get away with backstabbing a friend. Yes, he probably won't get away in the end, but we're not there, yet.