Lowering the retirement age also increases the number of people receiving pensions and other retirement benefits; many of those benefits are underfunded (depending on country) and quite expensive to pay out.
New, young workers also tend to come in at lower pay scales than older workers leave. Those two effects can plausibly increase the cost to government of retirement, so they don’t want people to retire early. That might also function as a wealth transfer from elderly people to corporations (or shareholders) too.
Lowering the retirement age also increases the number of people receiving pensions and other retirement benefits; many of those benefits are underfunded (depending on country) and quite expensive to pay out.
New, young workers also tend to come in at lower pay scales than older workers leave. Those two effects can plausibly increase the cost to government of retirement, so they don’t want people to retire early. That might also function as a wealth transfer from elderly people to corporations (or shareholders) too.