“I see no real reason to do this. I don’t think the Bible commands that wine be used.”
You think Christ had grape juice in that Last Supper cup?
No, He had wine, but again, it wasn’t a commandment to use the specific ingredients of the meal.
Frankly, I believe that Christianity is about, and only about, your relationship with God. Ritual is important, but not vital, IMHO.
could be wrong, though. God will let me know someday.