At 21 years old, individuals are typically considered legal adults in many countries, allowing them to engage in activities such as voting, drinking alcohol, and signing contracts. This age is often associated with increased independence and responsibility, marking a significant transition from adolescence to adulthood. In many cultures, turning 21 is celebrated as a milestone birthday, often referred to as the coming of age. This age can also signify the completion of high school or the beginning of higher education, as many young adults pursue their goals in college or the workforce.