Its working-age population, between 15 and 64, will grow nearly 18 percent by 2020, compared with only 0.3 percent growth for China, according to Euromonitor International.
Meanwhile, more than a quarter of Indonesia's 242 million people are under age 15, according to the World Bank; half of the Philippines' 95 million people are under age 20.
"The work-life balance is something that would be a deterrent." Ang is one of many young people across Asia whose decision to put off having children is worrying their governments.
From Taiwan to Singapore, authorities are stepping in to organize speed dating and other matchmaking events in a desperate attempt to stem falling birth rates.
Take the case of Japan, which has the largest number of people above the age of 65 in the world; these older people make up 25 percent of its 128 million-strong population.
This is increasing the burden on its public finances as economic growth stagnates.
In Taiwan, the central bank has started playing matchmaker by organizing get-to-know tours for public and private sector employees.
According to the CIA World Factbook, Asia's most developed economies such as Singapore, Hong Kong, Taiwan and South Korea were among the top six countries with the lowest fertility rates in the world this year.Governments Get Into the Act Several Asian countries have come up with special programs and innovative ways of encouraging people to get married and have more kids.In Singapore, for example, its Ministry of Community Development Youth and Sports has accredited 11 dating agencies; through initiatives like the Social Development Network it facilitates marriage via speed dating and salsa workshops.The most populous country in the world, China, with 1.3 billion people, is also aging fast; its 60-plus population is expected to account for more than a third of the total by 2050, according to the Boston Consulting Group and global reinsurer Swiss Re.This is putting pressure on Beijing to rethink its one-child policy started in 1979.