Social supermarkets as a new phenomenon within social entrepreneurship are a non-profit form of organizations which prioritizes the fight against marginalization and social exclusion of some segments of the society. In Croatia, it is gaining popularity over the past five years, primarily due to the effects of the economic slowdown. The benefits of social supermarkets are heavily focused on the humanity, charity, social care and volunteerism of young population. This paper describes mechanisms and logics of operating activities of social supermarkets focusing on issues of participation of young population in everyday activities. In this paper, the results of the primary research on young population in Croatia are discussed. The primary survey included questions on (1) awareness of the existence of the social supermarkets and their role in society, (2) aims of operations and operational activities of social supermarkets, (3) attitudes towards volunteering in social supermarkets.