Occasionally, at a
renaissance faire you will find men who have made the choice to wear
kilts. This choice is not an easy one, from deciding that they don't mind being
men in skirts to finding out
how to wear a great kilt.
There does, however, tend to be just one problem.
Not everything that is considered plaid by Americans is a tartan. I don't mean that one has to wear an official tartan of a given clan; at the time that was period for faires and the SCA, clans did not have specific tartans.
What I mean is that taking that plaid tablecloth that has that pattern you find at Italian restaurants is not a good idea. It makes you part of Clan Pizza Hut, and Scotsmen who know better will laugh at you behind your back.