Imagine you have a 10-year-old son. You're a single mother sharing physical and legal custody with the father of your child. He spends half the time with you and half the time with his dad. However, you just got the job offer of your dreams, making triple your normal salary. The problem is: The job is out of state and your custody orders say you can't move out of state without permission from the other parent.
Your dilemma wouldn't be a dilemma if you didn't have to consider the opinion of your child's father, and the court. However, the law is the law and if you try to move out of state without permission, you will violate your child custody orders and probably lose your parental rights.