I enjoy wearing my Utilikilts kilt to various places... including any activity that includes my mom as she loves it. I consider it, as well as my traditional tartan kilt as a piece of clothing to be worn almost whenever. When I wore one to work on my last day at my last job, one comment I got when I said it was to celebrate my last day there was "it's a shame that you waited till the last day".
It seems that a lot of folks buy them to wear to events like Burning Man kind of like a costume, which is a shame. A recent post on ebay for a never-worn Mocker style kilt states that it was bought for Burning Man but the owner is not going so he is getting rid of the kilt (actually I think a Survival model is much more appropriate as the Mocker is designed for office wear, but the Mocker is cheaper). What a waste. Either you are man enough to wear the kilt anywhere, or you are a poser only brave enough to wear a kilt around other costumed people.