What does it mean to be a citizen in today’s Western societies? There is often talk of a certain discomfort with the responsibilities that come with citizenship. Why? We will look here at three areas where we spend our daily lives as citizens. They shape and establish in us some “habits of the heart,” to use the well-known expression of Alexis de Tocqueville, who referred to customs, to what the ancients called mores. The study of these habits “enlightens us on the state of society, on its continuity and on its long-term vitality.” The three areas that seem to us to be of particular importance for the problem that we intend to address are the public space, work and the family.