How about cos they look like a cheap piece of tat? A sportskilt looks like someone has pinched my Granny's curtains and hastily wrapped it round their legs and said...Hey a blind man in a hurry wont notice I'm not wearing a real kilt.
As the topic is just restricted to sport kilts (as opposed to other makes) I wont say anymore. Any road oop I've run out of boiling oil with which to fend off the villagers coming over the hill with their pitchforks readied so I darent mention any other makes. No sir, not me. I'm the epitome of discretion. My lips are sealed, the tongue is bleeding but not one word outta me. Nnnnnggggghhhhhhh. See? Sealed tight.