Something unexpected happened to New Zealand's oldest workers during the pandemic: they got safer.

Fatal and serious injuries among workers aged 55-59 dropped by more than half between 2020 and 2024. In 2020, 10,350 workers in this age group suffered a fatal or serious injury. By 2024, that number had fallen to 4,734, the lowest level in 22 years (Source: Stats NZ / ACC, fatal-serious-injuries).

This isn't a small shift. It's a collapse. And it raises an uncomfortable question: if workplaces could become this much safer in four years, why weren't they safe before?

Here's the contrast that tells the story. In 2020, more than 10,000 workers approaching retirement were seriously injured or killed on the job. Just one year later, in 2021, that number was still above 10,000. Then something changed. By 2022, injuries had fallen to 4,929. They've stayed below 5,000 ever since.

The timing matters. This drop coincides with COVID lockdowns, remote work surges, and entire industries shutting down or restructuring. Construction sites emptied. Factories paused. Offices went home. The result: fewer people in harm's way.

But the injuries didn't bounce back when workplaces reopened. The 2024 figure is barely changed from 2023. Which means something stuck. Either workplaces learned to operate differently, or this age group changed how they work, or both.

Workers in their late fifties aren't kids taking stupid risks. They're experienced. They know the hazards. Yet for decades, more than 10,000 of them were getting seriously hurt every year. Now, suddenly, fewer than half that number are.

This matters because New Zealand has an ageing workforce. More people are working into their sixties and beyond because they need the income or because there aren't enough younger workers to replace them. If pre-retirement workers are going to keep working longer, they need to stay intact.

The data shows it's possible. Fatal and serious injuries in this age group can be cut in half. We just needed a pandemic to prove it.

The question now: will we keep the lessons, or will the numbers creep back up as workplaces slide into old habits? Because 4,734 people seriously injured in a single year is still 4,734 too many.