I've got to chime in on this thread.

As to kilts becoming popular; I can see some of the less traditional, more modern type kilts becoming more common, but popular, I don't think so. My reasoning; price, and style. Most of the younger generations who tend to push clothing trends aren't afraid to spend money on clothing, but probably won't want to spend the kind of money it costs to buy a tank. Most of these people would also perfer to not look retro, but would rather move forward, and try to incorporate the look into where todays fashion is going. Of course I am not very fashionable myself, so this is just speculation.

I think the most important thing is to look, and act appropriate in whatever kilt variant you choose to wear. How we put our outfits together is important, as it sends a message to whoever sees us wearing our kilts. The kilt outfit you wear changing your oil may not be the best choice of kilt outfit to wear to a wedding. Nor would the kilt outfit you wear at a wedding be the most appropriate choice for spending a day at the mall with your wife. Some kilts were designed for casual use, while others were designed to be worn formaly. Others still fall comfortably (and thankfully) in the middle. Put together the right combination, and adopt the correct behavior for the situation, and kilt wearing will be advanced.