Although children have prompted and participated in numerous acts of protest and advocacy, their words and labors are more likely to be dismissed than discussed as serious activism. Whether treated disparagingly by antagonistic audiences or lauded as symbols of hope by sympathetic ones, children and teens are rarely considered capable organizers and advocates for change. In Just Kids, Risa Applegarth investigates youth-organized activism from the 1990s to the present, asking how young people have leveraged age as a rhetorical resource, despite material and rhetorical barriers that limit their access to traditional forms of electoral power. Through case studies of antinuclear activism, im/migration activism, and activism for gun reform, this book reveals how childhood both limits and enables rhetorical possibility for young people. Drawing on interviews and focus group discussions with activists, Applegarth probes how participants understand the success and failure of their efforts beyond the immediate moment of impact. Methodologically innovative, Just Kids develops a framework of reflexive agency to make sense of how participants’ activism has mattered over time within their lives and communities.