Working Until 75? The Future of Retirement Is Being Rewritten

The Question

Here is a fact that should make you pause. When Germany introduced the world's first state pension in 1889, the retirement age was set at 70. Average life expectancy at the time was 67. The pension wasn't meant to fund a long, comfortable retirement — it was a safety net for the rare few who survived long enough to need it. Most people were expected to work until they died.

Today the logic has flipped entirely. People in wealthy countries routinely live into their eighties and nineties. Pension systems designed for shorter lives are groaning under the weight of retirements that last 20 or 30 years. Governments know retirement ages must rise. The harder question — the one this article is actually about — is whether the human body and the modern job market can really handle workers staying on into their seventies. The answer depends almost entirely on who you are and what you've spent your life doing.

What the Evidence Shows

The numbers behind this shift are striking. The WHO projects the global population over 60 will hit 2.1 billion by 2050 — double what it is today. Japan, the most aged society on earth, already has 13% of its workforce over 70. The UK's state pension age is scheduled to rise to 68 by 2044. When France tried to raise its retirement age from 62 to 64 in 2023, it triggered the biggest street protests in decades. The fiscal pressure is real. So is the public fury.

There's a crucial distinction most politicians avoid: the difference between how long you live and how long you live healthily. Average life expectancy in wealthy countries is around 80 to 82 years. But healthy life expectancy — the years without significant disability or chronic illness — is closer to 63 to 66. That gap is the problem. Raising retirement ages effectively asks people to keep working through the period when serious illness, joint damage, and cognitive decline become statistically likely. For a desk worker with a flexible schedule, that may be manageable. For a nurse, a builder, or a warehouse worker, it is a very different story.

Age discrimination makes all of this worse. It's illegal in most developed countries and pervasive in practice. Workers over 50 who lose their jobs take far longer to find new employment and are far more likely to leave the workforce entirely — not by choice, but because no one will hire them. The gig economy has become a refuge for some older workers, offering flexibility that traditional employers won't. But gig work rarely comes with a pension, healthcare, or the social connection that structured employment provides.

Why This Is Happening

The maths of state pensions is brutal. In most wealthy countries, pension spending already consumes 10 to 15% of GDP. The ratio of workers supporting each retiree has fallen from roughly 5 to 1 in the 1970s to a projected 2 to 1 by 2050 in some nations. The pay-as-you-go model only works when there are enough workers. There won't be. Raising retirement ages is the most politically visible lever governments have. Immigration, women's workforce participation, and productivity growth all matter too, but they're harder to sell as a solution.

The health effects of late-life work are genuinely mixed. Research shows that purposeful work can protect older people from cognitive decline and social isolation, and that abrupt full-stop retirement is associated with measurable declines in mental sharpness. Gradual, flexible transitions produce the best outcomes. But this only holds for work that doesn't physically destroy you. For those in manual, high-demand jobs, staying on longer appears to accelerate health decline, not prevent it.

This is also a story about inequality. Raising the retirement age to 68 hits completely different people in completely different ways. A university lecturer who works from a chair can probably manage. A care worker with bad knees, no savings, and 45 years of physical labour behind her almost certainly cannot. Any serious reform has to grapple with this difference — not paper over it with a single number that applies to everyone.

What Could Happen

What Can We Do

If you're working now, the most valuable thing you can do is build what researchers call "human capital reserves" — a wide range of skills, a strong professional network, and enough financial buffer to give you real choices about when and how you stop. Workers who keep acquiring new skills are far less exposed to the age discrimination that quietly pushes many older people out of work years before they're ready to leave.

Your body is the other investment. The conditions that make late working life genuinely hard — arthritis, heart disease, type 2 diabetes, chronic back problems — are largely preventable with enough lead time. Workers in physically demanding jobs often qualify for occupational health support and ergonomic help they don't know about. Seek it out. The gap between a 65-year-old manual worker's physical capacity and a 65-year-old office worker's isn't mostly biology — it's the accumulated result of decades of different working conditions.

At the policy level, the most important single reform is breaking the link between retirement and one universal age. Nordic countries already do this: a Finnish construction worker can retire at 63 while an office worker works to 68. Combine that with real investment in retraining for displaced workers and in the preventive healthcare that narrows the healthspan gap between rich and poor, and later retirement can be a genuine choice rather than a sentence.