Does South Carolina have laws regarding dating ages because your 19 year old son is dating a 15 year old girl whose father does not approve solely because of the age?

Yes, the young lady is a minor the young man is considered a legal adult. The young man could find himself in serious legal difficulties even if the relationship is not one of a sexual nature. This is especially true when the minor's parents do not approve. S.C. as all states has laws governing relationships between adults and minors and retains the authority to enforce and prosecute the adult at the state's discretion. The co-operation of the minor or the minor's parents or guardian is not needed for the state to pursue criminal charges against the adult. In addition the parent(s) or guardian of a minor involved in such a relationship have the option to file civil litigation against the adult party if they so choose. Dating is not a problem and is not legislated in any state. Anything more in the way of contact is, since the age of consent in SC is 16. Because he is more than three years older than she is, he can be prosecuted for any sexual contact. And I wouldn't approve of the relationship if either of the two was my kid!