There is a tradition in Seattle, going all the way back to the mid 50's, of a summer festival called SeaFair. One of the customs for SeaFair is the SeaFair Pirates. And yes, I have seen several of the pirates in kilts (and usually wishing I hadn't.)

Therefore, it must be true that pirates wore kilts. Certainly the Seattle business and tourist industry wouldn't lie like that. :rolleyes: