"Perhaps. But, what would a Greek say to an obedient and not obstinate child who asked: "But it still tastes like wine"?"
You know, in rather more than 50 years, I have never heard any Orthodox, child or adult, say that. I don't think anyone thinks about the Eucharist that way. Remember, we receive our "First Communion" at baptism. Its something we grow up with so the idea that its the same thing as the wine at lunch or dinner doesn't really occur to us (its a sweet wine anyway, usually "Commandaria" or something like it so its not like its the sort of wine kids would have much to do with).
If some child did, I suspect the answer would be, "Yes, it does taste like wine, but its not. The Holy Spirit made it the blood of Christouli." The kid then asks, "How?" and we'd say, "Its a Mystery of God." and the kid would go away satisfied because Mysteries of God are not foreign to our kids.
thanks very much.
A close friend said to me recently when we were discussing Orthodoxy, "We really don't live like Christians anymore." In context his meaning was close to what your reply describes.
And I think it is a great loss. I hope that over time it will cease to be true.