I go to a church of England church and recently it has started allowing children as young as five to take communion. The children in question have attended a set of classes for a term before doing so. They then had a special service (within the main family service), which wasn't actually a confirmation service, but very similar.
The priest asked a five year old boy what made him decide he was ready for communion. The little boy was speechless desperately shy. I doult he had any clue whatsoever what the sacrement of communion is. Yes, Jesus may have welcomed little children, but were there any small boys at the last supper?
What annoyed me was that my son was asked whether he wanted to prepare for communion by the priest when the priest damm well knows my views on the subject. I feel like changing church.
I think its better to wait until people have some maturity and life experience before taking the sacrement of holy communion. I have told my son that he will have to wait until he is sixteen years old to get confirmed. (Ie. when he is an age that he can actually make a decision independently.)