Justice for children meets specific obstacles when it comes to its realization due not only to the nature of rights and the peculiarities of children as subjects of rights. The conflict of interests between short-term and long-term aims, and the different interpretations a state can do on the question concerning how to materialize social rights policies and how to interpret its commitments on social justice play also a role. Starting by the question on why the affluent states do not seem (...) to be motivated enough to fully assume those duties of justice toward children —derived form recognizing children’s rights—, this article aims to explore and shed light on what psychology of motivation and moral psychology, and positive approaches could offer in relation to political and ethical challenges toward childhood. Hence this article advocates for the modification and enrichment of the philosophical discourse on children’s rights with what psychology has proved to have a more efficient impact in agents’ action and motivation. In doing so, practical philosophy could improve its role helping understand and eventually surpassing some akratic tendencies in the public sphere with respect to children’s rights. (shrink)