@CantStartaFireWithoutaSpark
It’s not about being mistaken for the bride. It’s about demonstrating respect to the bride.
She wears white, it’s one day, guests know this. If they wear white, it appears to be attention seeking and rude. Is girl code a thing? If so, it breaches it.
yes, I see that FOR YOU that is what it is.
But again, as many on this thread have said, for many of us, it just isn't.
none of this would ever occur to me as a guest or as the bride.
'guests know this'
except it must be just in some circles though, because in rl, I don't know anyone who cares, unless you wear something obviously bridal like a white lace dress, or white with white accessories etc.
would just not cross my mind that someone in a patterned summer dress which happens to have a white background was in any way at all breaching any etiquette.