rudy being rudy
When it comes to child labor laws on sets, depending on the age, the child has to fit in a certain amount of hours of school with an on set tutor and have a parent there.

I worked on set with a 9 year old and I want to say she was only allowed to work about 6 hours total. This doesn't include breaks, which don't count toward the 6 hour total. I remember having to keep a time of when she got on set and when she left it.