Sometimes people don't get that. My wedding was outside, just before dusk, in a very casual setting. We even said "casual" on the invitations. Of course she wore the classic white dress. I wore my dress blue uniform as I was still in the military at the time. My best man wore a navy suit and the maid of honor wore a blue dress. But as for the friends and family; who we expected to dress casually; the men all wore suits and the women all wore dresses. Everyone was seriously overdressed for what we were going for. However, my brother got it. He dressed casually. But he was the only one.
To some people, casual means "a suit that is not a tux."
