Before you bash me, I know that this isn't suggested to do...
How bad is it to include the suggested attire, as in "black tie optional" to a wedding. I know that you are supposed to be able to figure it out on your own based on the formality of the invite, but I really don't trust my father's family. I really want to make it clear that men should be in tuxes/full suits and the women should dress appropriately as well.
I feel like people who haven't heard of our venue (which is an old casino, built in 1870), won't know any better.
I know its stupid and they should be embarrassed if they are dressed inappropriately, but I really feel like there are people that are going to need guidance. I also feel that when you are spending upwards of $50,000 on a wedding people should be dressed appropriately.