Let me share some Samuel stories.
We were talking the other day about what God could do. I said to Samuel that God could do all things and Samuel said, "Well, He can't become Satan." There is deep wisdom there for one so young. It is indeed true that God cannot do what His nature will not allow. Not that He COULD not do it (that He lacks the power for it), but He cannot (He lacks the will for it). And it is in this, among other things, that we have our hope--God can never be other than simple, uniate, eternal, Love.
At communion two Sundays ago, as Linda and I were returning from receiving, Samuel jerked on Linda's shirt and said, "When do I get some of that Christ stuff?" Afterwards he expressed the same idea to Monsigneur who found it utterly delightful and decided that he would share that with everyone.
I have experienced this with my children, too. They know what It is and struggle with the long wait. I rather wish our habits wer more like our Eastern brothers and sisters.