There are not any legal advantages one way or the other, however if the parents introduce themselves as Mr & Mrs "Jones" the child may be more comfortable using the family name. However, if the parents are not married, then why should the child make that commitment if they won't?
No, single fathers have no assumed rights to their children, under ALL scenarios.
Yes they can.
That is usually a matter of choice. Most usually if the parents are together the child usually gets the fathers family name but if they're no longer a couple then most usually the child gets the mothers name providing of course that she wants to keep the child.
Until paternity is established the birth mother is considered to hold sole custody of a minor child. For a father to have custodial or visitation rights it must be agreed on by the mother of the child or through the prescribed court procedures by means of a lawsuit.
A child from an unwed mother is called an illegitimate child. Also called a bastard.
The law in all U.S. states presumes an unwed mother retains sole custody of the child until the father is granted custodial rights. In most states the father will be required to establish paternity before custodial rights or child support will be considered by the court.
48.435  Custody of children. The mother of a non marital child has legal custody of the child unless the court grants legal custody to another person or transfers legal custody to an agency.This is outright gender based discrimination. The state of WI has decided that an unwed mother gets due process of law(kidnapping) but an unwed father doesn't.The 14th Amendment's equal protection clause states: "nor deny to any person within its jurisdiction the equal protection of the laws", which is exactly what this law does, denies unwed fathers.
Yes
Yes. The minor parents have the same rights over their child as adult parents do. The grandparents have no legal right to the grandchild.
Difficult, but yes. In most cases, the state will take the child as single fathers have no assumed parental rights. see link
Nope, only if you are married to him
yes