Latin American scholars tend to understand the “childhood policy field” as the set of institutions that are traditionally oriented to assist minors and that were transformed by the Convention on the Rights of the Child. This assumption, rich as it has been for analyzing the modes of social regulation aimed at Latin American children, has failed to consider deeply the tensions in the implementation of CRC as a human rights treaty and as a framework for specifying children’s citizenship. Therefore, we will focus on this process in the Argentinean context, identifying the crucial points that permit us to better consider and identify the specific operations of institucionalization, and the challenges related to research.