For churches that do infant baptism, like Catholic or Methodist churches, for example, they have Confirmation when a child reaches a mature enough age. This usually happens when the child is about 12 or 13. The way it usually works is that a child goes through classes that teach him/her about the Christian religion in general - the Atonement especially, focusing on Jesus and His sacrifice on the cross - as well as sometimes incorporating a bit of information about the specific denomination. The point of this is to make sure the child fully understands what it means to be a Christian, to follow Christ, and to accept the salvation Christianity claims comes from Him.
After the Confirmation classes are completed, the child then goes through a ceremony to be Confirmed, which is basically taking on him/herself all of the promises made by his/her parents at his/her baptism, and committing him/herself to Christ and Christianity (cont)
at 10:46 PM on Jan. 4, 2010