Inspired by immigrant dress?

Last night in Tesco I noticed a man dressed as a Pathan tribesman and a woman in old fashioned Bedouin costume with a veil. If immigrants won't conform to our drab conventions, should British people be encouraged to wear traditional dress instead? We need not go to the extremes of wearing medieval clothes or impractical apparel, just something different with a bit of character that expresses our history or beliefs. Any suggestions?