I was picking out tuxes for the groom and groomsmen and the woman at Men's Warehouse told me that the fathers usually wear the same tuxes with a different accent color in the vest and tie. I just asked my dad what he was planning on wearing because I wasn't sure if I wanted to ask the fathers to rent tuxes as wel.. He said that he was planning to wear his uniform (he is a retired Lt. Col. in the Army). This is not a military wedding and no one else is in the military or planning to wear their uniforms. I don't really like the idea and think it might look weird in pictures. Is it rude to ask him to wear a regular tux?