In 2020, 10,350 workers aged 55-59 suffered fatal or serious injuries on the job. Last year, that number was 4,734. That's not a trend. That's a cliff.

We're talking about a 54% drop in four years. For context: this age group hasn't been this safe at work since 2002, when New Zealand had a much smaller workforce and very different industries. (Source: Stats NZ / ACC, fatal-serious-injuries)

Here's the contrast that demands explanation: the population of 55-59 year olds hasn't halved. If anything, it's grown as Baby Boomers age through this bracket. Yet somehow, the injury rate has collapsed.

Three theories. First: COVID changed where people work. Remote work exploded in 2020-2021. If you're not commuting, not on a factory floor, not climbing ladders or operating machinery, your injury risk drops to near zero. Even partial remote work matters. A tradesperson who does three site visits a week instead of five has cut their exposure by 40%.

Second: this age group is leaving physical jobs faster than before. At 55, your body tells you things it didn't at 35. The rise in early retirements, KiwiSaver drawdowns, and office-based consulting might mean fewer older workers in high-risk industries. You can't get hurt on a construction site if you've moved to project management.

Third, and most optimistic: workplaces got better at protecting older workers. New Zealand spent the last decade improving health and safety regulations. Maybe it's finally working. Maybe employers are doing more risk assessments, better training, ergonomic adjustments for aging bodies.

The timing is everything. The sharpest drop happened between 2021 and 2022, when injuries fell from 10,281 to 4,929. That's the year COVID restrictions lifted but hybrid work became permanent. It's also the year supply chain chaos forced many businesses to rethink operations entirely.

Whatever's happening, it's sustained. The numbers have held steady around 4,900 for three years now. This isn't a statistical blip. It's a new baseline.

The question nobody's asking: if we've made work this much safer for 55-59 year olds, why haven't we seen similar drops for other age groups? Either older workers are benefiting from changes younger workers aren't getting, or this age group is simply working differently than everyone else now. Both possibilities deserve investigation.