of course no
In a wedding, these escorts are generally called ushers. At a restaurant, they are generally called a host or hostess. In random places, they can just be called an escort or usher.
Sometimes, they escourt the women to their seats.
I believe it was symbolic for Diana,
They're usually just called .. 'seats'.
They are generally just called "seats".
traditional or classical wedding is called Orthodox wedding
Before - Wedding Ceremony After - Wedding Reception After Party
Gay or straight; a gay wedding party is simply called 'a wedding party' whether it is all men or all women in the wedding party.
A wedding planner.
A wedding planner
The tail of the wedding dress is called a "train".(You're welcome!)