My brother who is 31 is dating a girl from South Carolina who is 17 - he visits her a couple times a month. I have told him he is asking for trouble, he says the age of consent is 16 and it's ok. Who is right?

The age of consent in South Carolina is 16. The 31 year old does not appear to be violating current statutory rape laws in South Carolina; however, the 17 year old is still a minor under the legal authority of her parents. If the parents were so inclined, there are other measures her parents could take legally to prevent this activity and he could be arrested for other violations in the process.