What is the proper etiquette for your wedding party @ the Rehearsal? My nephew (9 yrs old) is an usher and my sister asked if he could wear shorts & t-shirt. I asked if he MUST wear shorts then to wear khaki's and a polo or a button-up to go with it. She then starts a fight w/ me that he is "just an usher." I honestly don't care what he wears but why ask me 3 days before Rehearsal what he needs to wear and hate my suggestions!!!