Which age group of Americans had the highest rates of illicit drug dependence/use?

The age group of 18-25 years old consistently shows the highest rates of illicit drug dependence and use in various studies and reports on substance use. This phenomenon can be attributed to several factors. At this age, individuals are often experiencing significant life transitions, such as leaving home, entering higher education, or starting their careers. These transitions can lead to increased stress and a desire to fit in socially, making substances more appealing as a form of coping or experimentation.

In addition, young adults in this age group tend to have greater opportunities and access to drugs; they are more likely to engage in social settings where drug use is present. This age cohort is also more likely to take risks and explore behaviors that may lead to substance use disorders.

While younger teens (12-17) may have their own challenges with substance use, and older adults (26-34 and 35-44) may experience different rates and patterns of use, the 18-25 age group remains at the forefront of illicit drug dependence, largely due to their unique developmental stage marked by exploration and a search for identity.