We are currently planning my daughters upcoming wedding. We have no children under 18 on either side of the family. There will be no flower girl or ring bearer. Our plans are to throw an adult party/reception. Several of our bridesmaids & groomsmen have young children under age 6. One is offended that he can't hold his toddler during the ceremony. The venue we have chosen is at a state park in a building that has an exhibit hall with artifacts on loan from the state museum. Needless to say, we have to put down a huge damage deposit for the use of the facility. How do we tactfully inform our guests & wedding party that this is an adult only event?