If stated in the divorce, it should have been clarified there. Only five states require it with age limits of 21-23, so if it's not clarified in the order, a motion to clarify will need to be filed.
see links
You need to review the stipulation that was filed with and approved by the court at the time of the divorce.
no the divorce does not stop you from doing so
You can unless it is court ordered then you really should comply.
see link
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Not sure what you mean here since if you are married the both of you are responsible for paying your bills. If he wants to mess with you you can start paying the bills. As married you should both have access to the money no matter who makes them. If he wants a divorce you can also not stop him. Maybe you should start thinking about getting a lawyer before the bills start piling up and you loose the house or something.
age 21 see link
What age do you stop paying for a tv license
You can't stop someone from delaying a divorce. A judge or magistrate eventually will and can move a divorce ahead without the other party.
After it is final and you changed everything.
To stop paying on a debt is to "Default" on the credit agreement.
See Link BelowChild Support Age-At what age does child support stop and what steps need to be taken to bring this about?