Internet and social media have an increasingly important role in the socialization process of children and adolescents, becoming an essential element for life. However, the participation of this process involves access to high-cost technological inputs, deepening the gap between those with access and those without. How do children and adolescents in different socio economical situation access this type of technology? and when they access, Do these differences impact on the reasons for using social networks? In this framework, we conducted a mixed qualitative and quantitative study, combining micro data from Encuesta de la deuda social de la infancia 2011 for the AMBA agglomerate and interviews to children and adolescents. For the analysis, we used the theory of uses and gratifications, revisited and updated by scholars of social networks. The main discovery highlights the contribution of digital inclusion policies promoted by the argentine state to reduce the digital divide in children and adolescents of school age, as well as the primacy of socialization as gratification category of respondents.