How about infancy?
Orthodox baptise our children as infants, and after baptism, the child receives their first communion, and then can take communion regularly the rest of their lives.
DW was brought up Lutheran though, and both of our children were baptised Orthodox. I had less trouble with Alex and church, because I was used to the experience as a boy, and he was an altar boy. Sophia on the other hand is a very picky child with ANYTHING that enters her mouth, and pretty much refuses to take communion. I keep hoping she will grow out of it, but no such luck so far.
Most of you are probably not aware of the communion process in an Orthodox church, but let me just say it is NOT pretty if your child is kicking and screaming that she does NOT want to take communion and go up to that funny dressed man with the beard!
John1