To make the bride feel even more beautiful...it's her day, so give her that one...
I thought the bride did it on purpose to make sure she is the hottest one up there. I mean honestly the groom can't do much to be the center of attention but like that commercial said all eyes are on her but she is focused on you. ... supposedly
its not the dresses its the things in them
I've actually seen a few good ones, although it's when they were allowed to wear different styles (same colors).
Cause the normally have to find dresses that fit them all and if they're not anywhere near the same sizes, they'd have to find something that would all match.
So you don't out shine the bride ?
To make the Bride Look Good.
To protect the bride from evil spirits!!!