Santa Ana, California / USA January 1, 2018. California passes the Recreational Marijuana law allowing adults over 21 years old to legally purchase and consume Marijuana in their private residences. Shutterstock Image - Santa Ana, California / USA January 1, 2018. California passes the Recreational Marijuana law allowing adults over 21 years old to legally purchase and consume Marijuana in their private residences. - ID: 789220597