They are parties, after all, and nothing makes a party quite like free booze.

Not everyone partakes, of course, but many weddings are quite costly to attend for some guests, and plying them with drinks is a nice way to thank them for coming and ensure they have a good time. (How else are you going to make sure they feel comfortable busting a move on the dance floor?) All that alcohol isn’t actually free for the one footing the bill, however, and weddings are expensive enough for the bride and groom — one or both of whom might be sober and/or uncomfortable being around alcohol — as it is.