I find it interesting.
Working in medical I often work with people of other ethnicities and I've gone on a few (5 dinner dates - nothing sexual) with medical assoicates - not colleagues per se. Anyway I find some of them don't care if we go to their ethnicity / ethnic restaurants & others are completely against going to such restaurants.
The reason I'm asking is because one of them slipped up and said he'd be embarassed going to X ethnic restaurant with a white girl. Let's just say he didn't last past that comment.