Japanese policy regarding arts education had not been well discussed. One of the reasons was the effects of the arts had not been highly regarded in Japan. This paper empirically addressed the effects of arts activities on years of schooling and income. Through path analysis, relationships were revealed between out-of-school activities and years of schooling, occupation, and income. Nationwide data -the Preference Parameters Study in 2013- is mainly utilized. For females, the results showed significant positive relationships between arts activities and years of schooling. For males, arts activities combined with sports and educational activities exhibited significant positive relationships with years of schooling. These results suggested creation of opportunities for all the students to take part in arts and other activities. This paper suggests the system, such as out-of-school voucher, for all the children to take the benefits of arts activities.