Generally these issues are determined and resolved by the courts at the time of divorce. Laws may vary state to state, but usually child support and visitation are two separate issues. Child support is for the welfare and support of the child and is due whether visitation occurs or not. However, child support generally ends at age 18, or the end of the school year that the child turns 18. Sometimes it is extended to age 23 provided the child is enrolled in college. Another reason child support may be extended is if the child has a disability or special need.
That is dependent of the specific state. see link
Nosee links
No.
In most countries 18 is the age when young people legally become adults. If this is the case in your country, then when a child turns 18, child support would terminate unless they are still at secondary school (then support continues to the end of the school year) However, if you daughter is attending college she probably requires continuing parental support from you. It is a parents responsibility to help their child through college or university to the best of their ability, but then the money can/should be paid direct to the child and not to the ex spouse.
How does a 23 year old get adopted? They are already adults. The back child support was until she was 18 (Perhaps until out of college). If you didn't pay it then, you still owe it. What happens since then doesn't eliminate your debt.
No you do not pay support after she has passed 18
Need clarification on your question. ..... Enditled to pay child support?
yes
It depends on where you live and what the child support order states. If you're in the US, child support generally ends at 18 or graduation from high school, whichever occurs last. However, in some cases parents are ordered to continue child support past 18 if the child is a full-time college student. The fact that that she has a child herself is irrelevant.
This depends on what it is you're asking. Does you state require support beyond high school? If it does, than make a request to child support enforcement to split the payment so that part if it can go to her, directly. See link for laws on child support beyond high school. If child support does not extend beyond high school, you will need to do a modification. see related question.
The depends on whether child support in your state stops at that time. Only a few states do. see links below
He is the father and not to allow him his child would hurt the child. Take him to family court for the support.
Yes, but if she gets married then you don't have to.