Changing demographics may lead to the end of retirement:
When Otto von Bismarck introduced the first pension for workers over 70 in 1889, the life expectancy of a Prussian was 45. In 1908, when Lloyd George bullied through a payment of five shillings a week for poor men who had reached 70, Britons, especially poor ones, were lucky to survive much past 50. By 1935, when America set up its Social Security system, the official pension age was 65 — three years beyond the lifespan of the typical American. State-sponsored retirement was designed to be a brief sunset to life, for a few hardy souls.Now retirement is for everyone, and often as long as whole lives once were. In some European countries the average retirement lasts more than a quarter of a century. In America the official pension age is 66, but the average American retires at 64 and can then expect to live for another 16 years. Average spending on public pensions across the OECD is now the equivalent of more than 7% of GDP (they cost America just 0.2% back in 1935). In some countries the current figure could double by 2050, to say nothing of the cost of private pensions and extra spending on health and long-term care.