Wow, some very good comments.

I agree that many men in the US already wear the kilt in an uniquely American way, and I expect that to continue. THCD will probably continue to provide the guidelines for dressy and formal occasions in the US, but American men will look to and adapt contemporary fashions for casual wear. Like it or not, mainstream fashion in the US is becoming increasingly casual, and I think that this trend is, and will continue to be, reflected in the way that men wear kilts in the US. The choice of what jacket, shirt, hat, or shoe to wear will depend more on the occasion than the fact that a kilt will be part of the outfit. As an example, Brogues/wingtips are dress shoes and will not be chosen for truly casual occasions, whether a kilt is worn or not! If an American man chooses to wear a kilt to an event for which jeans would be very appropriate, the clothes that he wears with his kilt are going to reflect that level of dress.