Do they use chopsticks in Korea?

Yes, I'm Vietnamese from Hai Phong and Ho Chi Minh City (Saigon), and all the time during dinner and eating I always have to use chop sticks. You get the hang of it soon.

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The Vietnamese of recently immigrated Chinese ancestry usually still use chopsticks, as do others with strong Eastern heritage and influences. Vietnam also had a lot of French influence in the history of their culture and, where that influence was more strong, there is more use of Western flatware along with the use of chopsticks. Both are used now-a-days.