As others have said you might want to create an occasion to wear it out, if you are worried about an explanation to others. At this point in my kilting career it really does not matter to me what others think however curiously enough all I seem to get these days are compliments. I am sure that this has to do with confidence, the only way to get that confidence is to go out and do it, and continue wearing your kilt in public.

So if at first you have to have an occasion than so be it, but do yourself a favour and make sure that you look good, I've found that if the outfit is well put together than people will be more accepting of the kilt.