In 1950, less than 1% of the global population was over 80. By 2050, the share of those aged 80 and over is expected to reach nearly 10% across OECD countries. The trouble is, while people are living longer, they are not always able to look after themselves. Relying on family help can be difficult, not just financially, but also because, as people live longer, their children may also be ageing and facing challenges of their own. That is why public authorities are starting to focus on the issue of long-term care and the provision of services for elderly people with reduced functional capacities.

As actress Bette Davis once said, "getting old is not for sissies". Just when you expect to be reaping the rewards of a life of hard work, there is a surprisingly good chance that you will, instead, be struggling just to get by. In the mid-2000s, an average of 13.3% of people over 65 were living in poverty in OECD countries. An astonishing 45% of Koreans of that age were income poor, as were more than one out of every five older persons in Australia, Greece, Ireland, Japan, Mexico and the US. In only eight countries was the income poverty rate 5% or less among their oldest citizens.