It is good to have some clarification on the law in this area and this has to be the right decision by focusing on the child's welfare, although it makes it very difficult to advise a parent wanting to move or a parent wishing to prevent a move as each case will turn entirely on its own facts.  The best way to assist parents in the first instance will be to try and discuss practical solutions through alternative dispute resolution processes and see if the move can work for both the parents and the children.