Apparently its been a thing for a while.
Here's an opinion piece promoting it.
- Retirement should be a right. But it’s in danger of becoming a privilege for the rich.
Like all of us, older people have been hit by the rise in living costs, and some are forced to keep working beyond the retirement age to avoid falling into poverty. The decision to retire is, for many, an individual one, and an awareness that your financial situation remains precarious, and that working while you can is your only prospect of topping up your savings and pensions, is likely to weigh heavily on any decisions to stop work. Pensioner poverty has fallen from its peak in the mid-1990s but has begun to rise again in the years following the financial crash, with 16% of pensioners living in poverty, despite benefits for over-65s having been protected against cuts.