Painting in broad strokes, it is easy to see why and how a 17th and 18th century Highlander would have been a rough character. But, I am sure there was a degree of kindness, compassion and hospitality among their ranks and within their communities (Same as the Vikings and Normans that brought the kilt to the British Isles and introduced it to the Anglo-Saxons that had settled there after the Romans departed).

Regardless, I believe the point is that these kilted warriors (the Vikings/Normans and Highlanders) could be seen as the original "rugged individualists," often feared and admired by their peers and enemies. As such, they were free to do as they pleased and held their heads high in the face of critics and naysayers, thumbing their noses at those that would object to their lifestyle and traditions.

However you see it, those that choose to wear a kilt, at some level, are carrying on that warrior spirit and keeping the tradition alive, whether they wear a clan tartan, a khaki UK or a lava red Sportkilt.