You are doing a fabulous job for the advancement of the knowledge of Modern Humans. If you were at all involved in your cousin Leslie's wedding, you know that no one orders the bride around.
Many brides choose a piece of antique family jewelry or mother's wedding gown.
This can be a new gown, veil, etc. Often the borrowed item is a lace handkerchief, a necklace or the like. Frankly, these sound more like ways to make the wedding day's inevitable mistakes sound like good luck charms and calm that jumpy bride. But that's just the icing on the wedding cake. The bride must stand on the left of the groom.