Why family catechesis?

“. . . in every Christian family the different aspects and functions of the life of the entire Church may be reflected: mission; catechesis; witness; prayer, etc. Indeed in the same way as the Church, the family ‘is a place in which the Gospel is transmitted and from which it extends.’ The family as a locus of catechesis has a unique privilege: transmitting the Gospel by rooting it in the context of profound human values. …It is, indeed, a Christian education more witnessed to than taught, more occasional than systematic, more ongoing and daily than structured into periods.”

General Directory for Catechesis, 1997