It's Parenting, not Child Custody!
People have custody of things that they possess. Children are not things or possessions.
For too long the family courts and family lawyers (and as a result, mothers and fathers) have been referring to child custody. A new view is making its way into the legal vocabulary, and it is "Parenting". Instead of Custody Agreements, or Custody Orders, if the legal establishment began substituting the word Parenting for the word Custody, we'd make a positive development in separated family life. The sooner separated parents view Parenting as a joint, or shared responsibility rather than as a contest of wills for custody or possession, the better will be the relationship and the effect on the children of the family.