ISTANBUL Alarmingly shrinking fertility rates are triggering demographic crises in several countries in East and Southeast Asia with increasingly aging populations and dwindling workforces.  South Korea, Singapore, Hong Kong and the island nation of Taiwan are among the five countries with the world’s lowest birthrates, according to a 2023 CIA report. The situation is no different in regional giants such as China and Japan, where dwindling populations have pushed governments to offer incentives