My fiancé and I are having a very simple outdoor wedding in his mothers gorgeous backyard followed by a big party with a BBQ and pig roast. Its at the end of August and my father thinks he and my fiancé should wear suits but I think it is going to be way too hot. My fiancé wanted to wear khakis with a white button up because I will be wearing a white sundress. My father is pushing the suit issue; how can I let him down gently? And does anyone else think its important the men wear suits? We have no maids or men, just my father and fiancé. TIA!