Mixed weddings
Question
But if they themselves wanted mixed seating, then you cannot go. (there are exceptions to this rule - ask your Rabbi directly when it is relevant) CYA Where does it say you can't go to a wedding with mixed seating. Rav Moshe Feinstein made mixed weddings for his children
Answer
Answered by Chaim Yisrael AbadiGood question. It is in the Ohr Yitzchak - Even Haezer - Teshuva #4. If what you are saying is true about Rav Moshe, then I guess that is another example of my father being a Machmir. CYA