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Here are a few phrases that may help you in South Korea. Also, a list of online Korean language programs is available at the Omniglot website, http://www.omniglot.com/writing/korean.htm.
As in some other Asian cultures, an infant is considered to be one year old when he or she is born. Laws pertaining to age are based on the first of the year. For example, the drinking age in South Korea is 19, so a teenager in Korea can drink on January 1 of the year he or she turns 19.