The very nature of the lay apostolate would be at stake without the support of the priest. The lay apostolate without the priest would be utterly unthinkable for Frank Duff.
The priest represents Christ as Head of the mystical Body of Christ so it would make no sense at all for the laity to act independently of the priest.
Rev. Fr. Bede McGregor, O.P., Concilium Spiritual Director
Legion of Mary Child Safeguarding Policy
The Legion of Mary Child Safeguarding Policy aims to do everything
possible to provide a safe environment for children and young people
where they are cherished and encouraged to become involved in the life
of our Church.
The Legion of Mary is a lay apostolic association of Catholics who, with the sanction of the Church and under the powerful leadership of Mary Immaculate, Mediatrix of All Graces, serve the Church and their neighbour on a voluntary basis in about 170 countries. With the approval and support of the Popes and a great many Bishops, Priests and Religious, as well as the prayers and efforts of legionaries, the Legion, by the grace of God, has grown into a worldwide organisation with several million members.