Rural regions are undergoing a process of “spongification” in response to declining populations. Correspondingly, a new way of life, work, and public nature is being explored in what is termed the “reverse frontier.” In this context, with the diversification of residential histories and the advancement of IT technology, a framework of a broader “mobile region” becomes crucial, surpassing the conventional boundaries of “residential areas.” The author refers to this situation as the post-urbanization era. This paper examines how rural living in the post-urbanization era is perceived by the younger active generation, drawing insights from the author’s involvement in research. In regions facing population decline, there is a notable increase in the proportion of individuals choosing to live in the “mobile region,” including those returning to their hometown (U-turners) and newcomers. These individuals play a significant role in assuming responsibility for the public aspects of these new regions. However, there exists a substantial disparity in awareness between this mobile population and those with limited mobility. The paper also raises questions about whether the public aspects of the “mobile region” represent an evolution of the public aspects of the “residential area” or merely an expansion of the geographical scope of the region. Further exploration is necessary to understand the nature of this relationship.
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