What is the legal drinking age in most U.S. states?

The legal drinking age in most U.S. states is 21 years old, which is established by the National Minimum Drinking Age Act of 1984. This legislation made it illegal for anyone under the age of 21 to purchase or publically possess alcohol, effectively creating a nationwide standard. The law was enacted in response to concerns about the negative consequences of underage drinking, including higher rates of accidents and alcohol-related harm among younger individuals.

States that did not comply with the federal minimum age risked losing a portion of federal highway funds, which motivated all states to adjust their laws accordingly. As a result, today, individuals must be 21 years old to legally consume alcohol in any public setting across the United States.