East Asian countries, including Japan, South Korea, Taiwan, and China, have successively crossed the threshold into low birthrate and aging societies from the late 20th century to the early 21st century. This demographic shift has led to a gradual relocation of their industrial production centers to Southeast Asia still boasting a young population structure. However, United Nations estimates indicate that the 11 countries of Southeast Asia entered the initial stage of an aging society between 2019 and 2023, mirroring the trajectory of their Eas…