As an expert in cultural and social traditions, I can provide an insightful perspective on what an 18th birthday signifies in various cultures and societies. The milestone of turning 18 is often associated with the transition into adulthood and carries different meanings and celebrations around the world.

In the United States, an 18th birthday is a significant event as it marks the attainment of legal adulthood. It is a time when individuals gain new rights and responsibilities, such as the ability to vote, serve on a jury, sign contracts, and in some states, the legal age to purchase alcohol. The celebration of this birthday can vary greatly, from small family gatherings to larger parties with friends. It is common for young adults to receive gifts that symbolize their new status, such as a car, a piece of jewelry, or a trip.

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In Canada and the United States, families often mark a girl's 16th birthday with a "sweet sixteen" celebration - often represented in popular culture. ... In the Philippines, a coming-of-age party called a debut is held for girls on their 18th birthday, and for boys on their 21st birthday.read more >>