Good luck, as someone who is kilted daily, at work and out I think you are going about it in a good way. Something that worked for me was that at work we had a "Heritage Day" where we would bring in food and music form all our various cultures, and wear the dress of our cultures as well. I siezed the opportunity and came in my kilt, it was so well received that I was continually asked when I would wear it again, and now I wear a kilt everyday.

Perhaps you could set up the same kind of thing through your social committee if you have one.