Roman Catechism 16.48

Chapter 16 — Part II: The Sacraments — Baptism

Section 48. And here indeed let us admire the supreme goodness and wisdom of our Lord. Seeing the necessity of this Sacrament for all, He not only instituted water, than which nothing can be more common, as its matter, but also placed its administration within the power of all. In its administration, however, as we have already observed, all are not allowed to use the solemn ceremonies; not that rites and ceremonies are of higher dignity, but because they are less necessary than the Sacrament.