Well... I did it, went out alone in kimono, and it was ok.
I met a small group og Japanese tourist on the way, they found it very funny to come to Copehagen and se a Dane in kimono, funny in a nice way : )
Here is what I put on for the day, not my bedst kitsuke, got a little too stuffed, but I had to leave so no time for a second try. I like the contemporary touch of it.