What is the name of your state?Louisiana I am the proud father of a newborn. I was asked to take a dna test after the birth and was confirmed the father. The mother placed her last name as my son's last name. She claims that she has no intent on giving the boy my last name even though i have been court ordered to pay child support. She says she will let the boy decide when he is 18 years old whether or not he wishes my name. No male i have ever known has changed his last name after 18 years. Do you have any suggestions about how he gains his rightful name? Thank you very much!