Definition: Indoctrinated into the Catholic Church. The usual way a person becomes Catholic is by baptism as an infant. This begins the period of training in the Church’s teachings and sacraments, highlighted by the reception of “First Communion” at around age 7 or 8. When an adult converts to Catholicism, they enter in to a multi-year program called the “Rite of Christian Initiation of Adults” or RCIA. The first part of RCIA includes classroom teaching lasting about six months. The final part is informal training of around one year known as “mystagogy.” This is a period of “hands on training” after which the new Catholic is eventually able to “take off the training wheels” so to speak.
Discussion: It is common (nay, necessary) for a Catholic who is born again to leave the Church (Rev. 18:4). Such ex-Catholics are often described as having been “improperly catechized.” Why else would they leave the Church?