hmm...actually, The great Kilt is a leftover from the Jedi Robes of old. After the Jedi purge, the few remaining Jedi decided that the plain robes of tradition were too recognizable, so they began weaving their robes in patterns (now called tartan) to escape discovery.

Eventually these last remaining jedi found Earth and settled in what is now known as Scotland, where they peacefully create fantastic scotch and hunt haggis by light sabre light.

Jedi-like abilities are still found in the decendants of these early settlers, with examples of great strength (caber toss), Constitution ( eating haggis) and mental power (how many answers do you know for most questions?). Above all of these, they still retain the ability to control the minds of those around them ( Just glance over your shoulder as you walk anywear in your kilt!)