So Brad Pitt has said to Esquire Magazine that
"Angie and I will consider tying the knot when everyone else in the country who wants to be married is legally able." 
I think it's great that he's got convictions and all, but are you seriously telling me that if Angelina Jolie turned round to him tomorrow and said "Ok let's do it, let's get married", he's going to be saying "well now no I think we should wait x amount of years because not everyone is allowed to get married yet"! I think not.