In the case of children, having a resolution process is extremely important. All of us require a certain amount of continuity and certainty in our lives. Our psychological health requires some fundamental security and regularity.
It is difficult for children if their parents can’t agree on a doctor, for example. Imagine that one takes eight year old Theo to Dr. Big, while the other takes him to Dr. Small. The question becomes which doctor has more authority, rather than whether Theo really should have his tonsils removed.
A mediator or parenting coordinator might help the parents to agree that Dr. Big will be the regular doctor but for any questions involving surgery, a second opinion will be sought from Dr. Small. If they disagree, Dr. Mid will consult.
Then Theo won’t have to suffer chronic sore throats and colds because his parents are deadlocked about his care.