Children and youth under 18 have made significant strides in recent years toward fuller inclusion in democratic processes. These strides, however, rarely rise to the level of direct political representation, whether in changing policies, making laws, or voting. This article argues that democracies will be able to represent children only by transforming what is meant by democratic representation in the first place. It shows why democratic theory has traditionally excluded children, how representation is more than just participation or citizenship, and how current children's political movements provide lessons for a more expansive politics of direct representation regardless of age.