Oh ... I see ... you had a "Cat's Eyes" picture 2 posts above your answer, those are not 12 year old, they in their early 20.
I loved it in my teen years, I was funy plus it excited my imagination.
I remember Hukuto No Ken also from hose days, no 12 years old with boobies there, just good old I rip your heart out in a post apocaliptic universe.
I used to like "Cobra" too, no kids there either.
I'm no expert in Anime
Lazs, I bet there's many exemples that would prove you wrong as I just posted 3 from my childhood days from memory.
Mangas/Jap anime definitly target the pre teen and teens, with like you pointed out, the discovery of sexual impulsions, and the confidense boost of "I'm a squeaker but I can take on the world". The surprise comes to me that it still finds a way to awake the pedophilia factor in 20 years old plus. But we all have our fantasies, would it be dress as a medieval knight, own a Falcon millenium model, drop a big block in motor city online, or fly cartoon planes online.
If you think that's bad, watch those pornographic animes where 12 year olds are getting raped by diformed humanoid monster with tri-penal rotating thingies. That will leave you clueless for a couple of days, wondering WTF:huh