In the early Church the sacraments of initiation were three: Baptism, Confirmation & Eucharist. They were celebrated together in a single rite, with a bishop as presider. This was the practice of the Roman Rite up until the 5th or 6th century when bishops could no longer be present at all baptisms, leading to a time of separation between baptism & confirmation. At first, the time of separation was short, but as time went on, the delay for the bishop to arrive grew. Still the Church celebrated the sacraments in the order of Baptism, Confirmation & Eucharist until this century.
In 1910, Pope Pius X recognized that children were not being allowed First Communion until the age of twelve to fourteen. He felt that such a denial was contrary to the vision of Jesus who always drew children to himself. Pius X ordered that children be allowed to come to the table of the Eucharist as soon as they could distinguish the Eucharist from ordinary bread. The age was then lowered to around seven. Confirmation was not discussed and therefore the order of sacraments was upset. The reforms of Vatican Council II called the Church to restore the original order of sacraments. This is not without challenges and difficulties. Such a change presumes a deep commitment on the part of the family to nurture the life of the young. Such a commitment means that parents have a need to understand the reasons for change & the ways in which they can help their child/ren.
The main reason for restoring the order of the sacraments, (i.e. putting Confirmation before First Communion) is to emphasize that Eucharist (Communion) is THE sacrament which celebrates our FULL membership in the Body of Christ. It is the sacrament of on-going growth and the sacrament of unity. The Church tells us that it "culminates" the initiation process. When it comes last in order, it calls us to renew that baptismal covenant each time we come to the Table of the Eucharist.