When a person becomes a parent, many would say that their lives have changed drastically, and that they would do anything for their children. Sometimes two parents decide to get a divorce, and because both parents have an interest in their children's lives, they fight over who should have custody of the children, either sole custody or shared.
This type of situation can be very emotionally charged. Both parents want their children to be a part of their lives, and they fear that giving up custody to another parent would hurt the relationship they have with their children. In some situations one parent may have significantly more money to file appeals and battle for custody. These situations can be difficult and sometimes end with one parent just giving custody to their ex.