This is dependent on the circumstances and the state. Not if it is voluntary, however in Missouri, if being denied access, the obligor parent can file to have child support placed on hold.
See link below. Child Support Laws - At What Age Does Child Support Stop?
age 21 see link
see link
See Link BelowChild Support Age-At what age does child support stop and what steps need to be taken to bring this about?
The obligor parent can request the support go directly to the child. see links below
That person could not want to see the child or the other parent is not allowing it or the law/government disallows it.
No. Visitation and child support are 2 separate issues and the child (although now adult) does not have to see the parent. The parent is always obligated to support the child anyway. Child support usually stops from age 18 though but in some states it can be prolonged when the child is in college.
In general, child support is based on ability to pay, not other factors such as whether the non-custodial parent is involved in the child's life.
Not automatically, and not in states where it extends beyond the age of majority. There are no laws that require the obligee parent to spend the money on the child. See related links below.
Not until age 18 or high school graduation. If the child is under 18, file for custody based on abandonment by the custodial parent. see links
Sole custody is when only 1 parent has the right to choose where their child goes to school, which doctor they see, and what religion they partake in. Child support is the money that the non-custodial parent will pay to help support the child.
No. You have remember that "support" is what the (usually) father pays the mother for the upkeep of the child. If the child moves out, the mother is no longer supporting the child and the father no longer needs to pay her.