What did the child labor laws state? Why did they not work?

Child labor laws stated that children had to work in safe, nonhazardous environments and get paid.

This unfortunately didn't work across borders because many countries still used children secretly as a method of illegal labor.

Child labor laws didn't really work because not a lot of states followed the rules and kids in asia are still doing child labor today. The child labor laws stated that the kids had work with no income.