I don't know what to do and could use some advice. I have a small family which includes my two siblings and their significant others, my parents, my grandmother on my dad's side, my grandmother and grandfather on my mother's side, 1 cousin, 1 uncle, 1 great aunt and 1 great uncle. Of those people, my two siblings and their significant others, my parents, and my grandmother on my dad's side all plan on leaving after the dinner at my wedding. My fiance is really upset and feels it is disrespectful for them to leave. They are leaving because of the alcohol. My dad is a recovering alcohol and just found out he is has stage 3 fibrosis of the liver which isn't good. He is very depressed and doesn't want to be tempted to drink while there. My sister recently stopped drinking because her life was spinning out of control due to alcohol. My brother and his wife, my parents, and my grandmother on my dad's side are all riding over to my wedding together (wedding is 2 hours from where they live so they are carpooling) so if one person leaves that means all of them have to. My sister would probably leave around the same time as them since she doesn't want to be tempted to drink either. I don't drink either, but my fiance does so he wants alcohol at the wedding. I can't make my family stay if they feel uncomfortable around the alcohol, but my fiance doesn't seem to understand that. Help!