I don't know what you'd consider a dress of my own ethnicity. Whatever the Celts used to wear I suppose (furs? tartan? Wool?). Maybe a toga as a nod to being part of the Roman Empire?
I have clothes from all over the place. I like Thai and Indian clothes because they suit this climate well (fishermen's pants, kurti...). I have a vintage kimono which is nice to wear in the Spring or Autumn (it's a little hot for Summer).
No dear, you are not ! Trust me, this stuff is really expensive in any other country except it's country of origin. If I visit an asian country sometime, I am sure I can find what I want at half the price of what it is available here. Also, there would be a lot of variety. Another reason you would feel like buying something :)
I don't think I do any more - I used to have a few Asian clothes (Malay, Indonesian, Thai, Chinese) from when I lived in Singapore but I think they have all been thrown out some time ago. They wouldn't fit me now anyway!
I do own a proper Scottish tartan kilt, which I guess as a true blooded Englishwoman is a different ethnicity... sadly that doesn't fit me any more either :(
Give it a try if you are in India sometime :) They would drape it for you in way that you can get an idea what you would look like , before you buy it ! And it's much much cheaper buying it there. It's horribly overpriced here .