Subsidiarity recognises that we are social beings, and emphasises the importance of small and intermediate-sized communities or institutions, like the family. Subsidiarity affirms the right of individuals and social groups to make their own decisions and accomplish what they can by their own initiative and agency. Honouring subsidiarity means that nothing should be done by a larger and more complex organisation which can be done as well by a smaller and simpler organisation or group.
The family is the basic unit of society and the is responsible the formation and education of children. So, important is the Church’s belief that parents are the first educators of their children that it enshrines this in the Law of the Church. (Canon 796, n. 2).
However, families do not have all the necessary resources to provide for all the educational needs of their children and Catholic schools have been established to assist in parents in the education to ensure that all children are formed intellectually, physically, socially and spiritually.