First off, the Church has already said that, in numerous teaching documents, as a general principle. But it wouldn’t work to establish a standard, universal curriculum all over the world, which is what it seemed like you were talking about.
Second off, what you say about Confirmation is neither canonically nor theologically true. Infants are confirmed in some circumstances, both universally in the Eastern Churches, and in emergency situations in the Latin Church. I, for one, would advocate returning to the “restored order” of the sacraments, wherein Confirmation occurs before First Communion. None of the sacraments impart grace contingent upon our understanding of them, save for perhaps marriage, which is a bit of a different animal. Our insistence upon intellectual understanding as a prerequisite is part of the problem; it’s as though we don’t believe that grace works without understanding, which leads to a lot of the pastoral issues we have. Start confirming young children and let the grace of the sacrament guide them as they get older, and I guarantee you will see many of them more faithful and more understanding of their faith.
-Fr ACEGC