Are there still rules to weddings? In this day and age, it should be discussed and determined who can pay for what and how much. I really hate thinking that the grooms' parents are responsible for this... and the bride's parents are responsible for that... and what exactly are the bride and groom responsible for?
I'm not much for huge, $thousands of dollars weddings and, depending on the finances of each family, think that brides and grooms need to talk to their families and see what everyone is WILLING (not necessarily able) to pay and go from there.
FWIW, I always heard that the grooms' family was responsible for the rehearsal dinner for the immediate wedding party and out of town guests. Now, that's fine if there are only 20 people involved and everyone's happy with a backyard BBQ

but what if there are 50 people involved and the bride wants a lobster/rib sit-down at the country club?