The document argues that the legal drinking age in the United States should remain 21. It provides three key reasons: that setting the age to 21 in 1984 saved over 18,000 lives by reducing drunk driving accidents; that the brain is still developing until age 21, so younger people are less mature and more likely to engage in risky drinking behaviors; and research shows drinking later in life leads to a lower chance of developing alcoholism and alcohol-related medical and social problems later in life.