ABSTRACT
In Taiwan, rapid population growth and overexpansion of cities have led to problems related to aging and high population density in cities, which in turn has degraded the quality of life. According to the demographic analysis of 2015 conducted by the Department of Statistics, the Ministry of the Interior of Taiwan, R.O.C., by the end of 2015, there were 2.95 million people aged 65 or above in Taiwan, i.e., 12.51% of the total population. This percentage is close to the 14% threshold of aging society as defined by the WHO. In addition, the birthrate of people at 0-14 has seen a decrease from 19.34% to 13.57% in the last ten years. These facts suggest that Taiwan might face the impact of both aging society and sub-replacement fertility, making diverse co-living one of the most important issue during the transformation of social structure in Taiwan.
