My fiance and I are hosting the rehearsal dinner, we will be paying for the meals and one round of drinks for everyone for the toasts (probably beer or wine) - is it reasonable for us to ask our guests to pick up the rest of their drink tab if they would like to continue to drink alchohol? Or is this tacky? There will be 25 people and we don't want to end up giving free reign and paying for all of the alchohol consumed during that time.