Yes there is a law because of the content in the chat room. The law is that the owner must forbid a minor under 13 from entering. They don't get in trouble if the minor lies or simply does it anyway. They could only get in trouble if they didn't tell you not to enter. And then your parents are responsible if you read the content and they didn't monitor you going on the forbidden chat room and stop you. They could be charged with endangering a minor.