I think there is a distinction here if you asked a "layperson" to describe a kilt they would most likely say something like "Tartan and worn by people from Scotland" stuff like Utilikilts and stuff really do look to me like skirts for men, without wishing to offend anyone. I know there are plain patterend kilts and different pleating arrangements, but the the "man in the street" a kilt is Tartan and worn by Scots.

People can wear what they like but its if it looks OK or not just becase you can wear something doesnt mean it will look OK. its very easy to spoil the "look" of a highland outfit with the wron accesories, I saw a wedding party the other day and one guest was wearing white hose, I was waiting for the pipes to appear.