It says in SA YD Siman 152 Sif 1 that it's ossur to go to a wedding (seudah) that a gentile is making for his son. The Shach and Taz both discuss over there if for reasons of "aiveh" if one is allowed ...
According to the opinions which require Mechitzos by weddings. Why isn't there a requirement to have Mechitzos by any other Seudas Mitzvah? For example, why isn't there a requirement that one have a ...