That's what I call it when adults take over something meant for kids and suit themselves by making it unsuitable for kids. The Transformer movie is a prime example. Heres what I think happened.
I think the adults liked Transformers when they were kids. Now, when they get to make a movie about it, they make the movie they would like to see: lots of violence, pretty scary, throw in a heavy dose of sarcasm and tight low cut clothing (on the girls, not the giant robots).
Another example would be video games. A cursory look at X Box magazine (in a barber shop) shows that they are not just selling games (heavy sexual content in the ads), and the games they are selling often contain "adult" (read impure and hyperviolent) content.
How about comic books? Not just for kids anymore? Try NOT for kids anymore! Immoral "heroes" reflect the desires of adults, not kids.
Heres my theory: Video games, comic books and other amusements are supposed to be primarily for kids. Not that an adult shouldn't be amused from time to time, but an adult should not have time for extensive video game playing (we can talk later about how much time kids should have for idle non constructive amusement.) The point is that childhood has been extended and idealized as a time of license: do what you want with no responsibilities and no repercussions. Why grow up and be responsible? Why have kids to ruin your fun? They might break your toys!
I think kids are being crowded out of childhood by adults who don't want to grow up. What do you think?