Then how about the relationships between the characters? Kids are pretty sharp. When they see Sayaka getting torn up with violinfag, they'll think it's okay to give their life away to their first boyfriend. We're trying to decrease teen pregnancy rate here. Not start it early.
Then there's Homura with her unhealthy obsession with Madoka. They're gonna think it's okay to be gay and stalk the nice girl in class.
We got Kyouko who thinks it's okay to keep eating. You know America is facing their problems with obesity, right? You think this skinny ass girl eating whatever she wants is gonna make these kids feel better? Hell, they might even believe that it's alright to keep eating because they won't get fat.
And how about Mami? You know when she tried to kill her friends. Kids here are getting bullied day to day and even considering suicide. Now with Mami, she's actually turning the violence towards people. I don't know how that's going to help with people's children here.