Today, the average age an American girl has her first drink is 13; for a boy, it's 11. In the U.S. and many other countries, underage drinking is a widespread problem with often serious consequences. Young people who drink are more likely to be the victims of violent crime, to be involved in alcohol-related traffic accidents, and to have depression and anxiety. Other risky behaviors are also linked to early drinking. Young people who start using alcohol before age 21 are more likely to be involved in violent behaviors, attempt suicide, engage in unprotected sex or have multiple sex partners, develop alcohol problems in later life.