TrueLight, this is a common misunderstanding about what RCIA is.
RCIA is all about ritual - Rite of Christian Initiation of Adults. The Rite does not dictate HOW the the converts/candidates are instructed (group or private preparation), it dictates what happens in the parish and diocese while the converts are prepared. The Rites should be followed regardless of the method of preparation/teaching.
The RCIA consists of Periods and Steps
- Period of Evangelization and Precatechumenate (for many, this would be the period when they came to Mass with a Catholic spouse).
- First Step: Acceptance into the Order of Catechumens (Rites: Exorcism and Renunciation of False Worship; Giving of a New Name; some regional optional rites)
- Period of the Cathechumenate
- Second Step: Election or Enrollment of Names
- Period of Purification and Enlightenment (These rites take place during Lent and include: First Scrutiny; Presentation of the Creed; Second Scrutiny; Third Scrutiny; Presentation of the Lord’s Prayer; Preparation Rites on Holy Saturday [Recitation of the Creed; Ephpheta Rite; Choosing a Baptismal Name; Anointing with the Oil of Cathechumens; Concluding Rites]
- Third Step: Celebration of the Sacraments of Initiation
- Period of Postbaptismal Catechesis or Mystegogy.
We’ve only had one catechumen in our parish in the last 15 years. She was 9 when she started and she was instructed privately for over a year before she was baptized at the Easter Vigil. Her dad & step dad were Catholics but she had never been baptized. After her siblings were baptized, as ‘infants’ as understood by the Church, she asked to be baptized too. All these rites were done with her and the parish knew who she was from the day she was formally enrolled in the Order of Catechumens at a Sunday Mass and they followed her progress through to the Vigil.
As you can see, the RCIA is not for those who ask to be received into full communion. Although in most parishes they are lumped in with those who are not baptized for instruction, ideally this should not happen and they should be received into the Church when they are ready, some take longer, some take a very short time. No baptized person should be made to wait an entire year to be received if they are ready long before that.