The settlement of tools and devices of participatory democracy at the regional level in Europe, for few years, has been the occasion to wonder about the “scale” issue in the modern democracy. Indeed, in the specific case of French regions, the problem of a too larger scale, which could be argue against the idea of a regional active citizenship, is overcome thanks to two key resources: methodological “market” of participatory democracy and regional politics. Based on this empirical example, the whole “scalar” argument is now seen as a political argument (that could be contested or ignored) and not a self-evident truth. This definition leads to a proposition for a more clear debate about local democracy, which make the difference between political and technical issues.