yes!! especially if they are have alochol. I use an agent locally who uses Travellers. They not only provide cancellation insurance, but alochol insurance, and natural disater insurance. With th alcohol insurance, it protects the couple from being sued should one of their guests be involved in an alochol related accident on the way from the reception where alochol was being served. The venue is already protected, but not the couple who are viewed as the host and hostess of the party.
