I know this topic is kind of old, but I thought I'd add my $.02 if no one minds. I'm going to Scotland next spring and personally won't be taking my kilt. I would feel too touristy.

Last year when I was in Galway, Ireland I did see quite a few Scottish tourists kilted. There was a group of about 10 young Scots I saw literally everyday that I was there who were always in their kilts. I heard someone say outside a pub they thought they were Americans, but their accents sounded pretty genuinely Scottish to me, and one was a pretty good Highland dancer. A few buskers playing pipes in kilts around Galway and Dublin, too.