I don't see how localized culture clothing styles would be destroyed by importing different styles from other countries.
replynobody buys the local style because it is more expensive than the imported stuff. as a result the local style dies out, or it doesn't get a chance to be developed in the first place.
replyPreventing imports will force them to pay the higher prices for the local stuff.
replyMaybe it's better to let them decide what they want to buy.