My son's wedding is very small, 50 guest, most of them will be from out of town. They are not having a rehearsal but would like to have a dinner with friends and family the night before the wedding. They don't want to have the traditional rehearsal dinner since that would like having 2 receptions. They just want to have whoever can make it for dinner to come and enjoy everyone's company (pay your own way). Would that be tacky to invite people to dinner the night before a wedding and tell them it's dutch treat?