system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are actors allowed to take part in movies that they are not even allowed to watch?

For example kids in horror movies. Or that one girl in kick ass which was I think 16 at the time but the movie is rated 18 (at least in Germany)
gpt
Movie ratings are almost completely irrelevant and hold no legal actions or anything to them. They are just made up "suggestions" by the film industry is all.

There are some rules about child actors in the entertainment world, but these are more focused labor enforcement rules and regulations.