Why, because I am the one who will be pregnant for 9 months and I am the one who will give birth. Not to mention, as CP I will more then likely be the one filling out the paper work for doctors offices and school and everything else.
My ex thinks the child should have his last name, I think that is a privilege for men who marry the mothers other their babies. He didn't he wanted to stay single and only pay child support, not have the responsibility of a family so IMO this is the consequence, she will have my last name.
Oh, BTW before y'all start, I know she is half his but she is also half mine, she has to have one of our last names (I don't want to hyphenate because we both have long last names, kindergarten will be hard enough as it is without having to spell out both of them.)