My fiance' comes from a mormon family that does not drink. He is not mormon so he has no problem with alcohol. Heres my problem. We will be serving alcohol at the reception. My fiance's little sister was going to get married and when she mentioned to her mom that there would be alcohol at the reception, my FMIL told her that she would have nothing to do with the reception. I don't know how to handle this situation. I love her dearly but my side of the family does drink. My parents and I decided, out of respect, that we would have a sparkling cider toast. However, I am afraid that she will not come to the reception and I want her there. What would you do?