In economically less advanced societies the common destination of earthly goods is partly satisfied by means of the customs and traditions proper to the community, by which the absolutely necessary things are furnished to each member. An effort must be made, however, to avoid regarding certain customs as altogether unchangeable, if they no longer answer the new needs of this age. On the other hand, imprudent action should not be taken against respectable customs which, provided they are suitably adapted to present-day circumstances, do not cease to be very useful. (Second Vatican Council. Gaudium et Spes, 1965).