When Scotty Thompson wrote the guidebook "So You're going to Wear the Kilt" he was thinking in terms of the correct way to wear Highland attire. I think he would be amazed now to see how far from the Highlands the kilt has come, but I think he would have approved of the new trends in casual kilting, knowing that different rules apply for wearing denim jeans than for black tie, even though both involve trousers. If you are going to wear Highland attire, i.e. with all the accessories that includes, his book is still a pretty good way to avoid embarrasing yourself in front of real Scots. If some of the guests at the "Dressed to Kilt" affair in NY had read it they might have avoided some of the more ghastly embarrasments.