In what way did they withhold it? Money given to take care of a child could be put to the mortgage, clothes, food and all sorts of things. It wasn't money that was to be handed to the kid to use as they wished. A minor has no rights to the money.
No. The purpose of collecting back child support is to financially reimburse the custodial parent for the support he or she provided in the past. It is not intended to provide present or future support. The debt is owed entirely to the mother in this case, since she was the one who provided financial support to the child. There are cases in which an adult can receive the back child support owed to their parent, but these usually involve the death of that parent.
extremely unlikely
No, child support is not paid to the child but to the parent raising the child.
The child can not stop the child support because the support goes to his parent. The parent paying can get the agreement changed at the courts.
No, the child can not. The other parent could before the child was an adult. The money goes to the parent to use for the child and not directly to the child.
Only if the obligee parent releases the claim or is deceased.
There is, if you think about it, no such thing as an adult child. If you are 26 you are an adult and if for some reason you were not supported by your biological parent as a child, it is a bit late to do anything about it now.
Probably - the support is owed to the obligee (i.e., other parent and/or State), not to the children.
No, the filing period ended at age 18 for the parent, and age 19 for the adult child.
Only if the obligee parent is deceased and with the approval of the court.
No. That is not up to the child. If child support payments are in arrears, it means that the custodial parent was not receiving the child support as provided in the child support order issued by the court and the non-custodial parent was in contempt of a court order. The arrears are also set forth in a court order. The funds are owed to the custodial parent. Therefore, the debt cannot be "forgiven" by the child even if they are an adult.
No. What you suggest is not possible.