The States are required to collect past-due support. There is no statute of limitations on doing so. The wording of your question suggests that the past-due support was not dropped - if it was dropped, there is a court order stating as much.
Yessee link
Once paternity has been established: 1) pay child support; 2) have reasonable visitation
The Holy Grail and his father
The Adventures of Young Indiana Jones Travels with Father - 1996 TV is rated/received certificates of: UK:PG
Because he father dropped him when he was an egg
Yes, provided the separated parent is the father.
Marriage to the child's father would be the best proof, I suppose.
Voluntary support does not preclude an order for support. Voluntary support can be taken in to consideration when determining how much, if any, retroactive support is to be paid.
Yessee link
Once paternity has been established: 1) pay child support; 2) have reasonable visitation
Child support and child visitation are separate matters. Dropping one does not automatically mean that the other is also dropped.
Possibly. In this case, it doesn't appear that the child is "emancipated."
If you were order by the court to pay child support, that support will continue until the child either graduates college or stops attending. I do not believe the court can order you to pay for college. However, as a father you should be willing to help.
This will be successful only if the child is severely handicapped.
Yes.
The Holy Grail and his father
Child support is the non-custodial parent's portion of the expenses of the child, including housing, food, clothing and so on. It is up to the custodial parent whether an "allowance" can be paid to the child from the child support amount.