+M was asked his views on this, and was very clear that children should at least be welcomed from the time that they start school.He said that his own instinct was to include communicants from Baptism onwards, as the Orthodox do, and he longed for a Church in which children could no more remember their first Communion than their first slice of toast. However, he is constrained by the current House of Bishops guidelines which mention "a period of preparation" , implying that children must be receptive to being "prepared". Dealt with the "understanding" question very neatly, before it even arose, by saying that as adults the more we received the Sacrament, the more we realised that we didn't understand it, and the more we recognised our need of it.
Not much room for argument there, then!
His other great crusade vis a vis Communion is to replace those tiny perfect discs that speak of individualism and completeness with something obviously broken and shared. Are you beginning to understand why I value his ministry so highly?