Final answer:
Occupational licenses are used to establish quality in the labor market and show that a worker has completed a certain type of education or passed a certain test. The age requirements for obtaining different licenses may vary depending on the state and occupation.
Step-by-step explanation:
Occupational licenses are used to establish quality in the labor market and show that a worker has completed a certain type of education or passed a certain test. Some professionals who must hold a license include doctors, teachers, nurses, engineers, accountants, and lawyers. Depending on the state and occupation, the age requirements for obtaining a license may vary. For example, to work as a barber, embalmer, dietitian, massage therapist, hearing aid dealer, counselor, insurance agent, or real estate broker, most states require a license and the age requirements may vary.