A 4 day week could be done, but I still think that we cannot retire earlier since we live longer
Does not compute. If you can reduce your work load by 20% (4 days instead of 5), you could retire earlier instead. When in life you reduce those 20% does not matter. And life expectancy is not expected to grow by 20% out of the sudden. So there's plenty of room. If anything, life expectancy will shrink dramatically with climate change.
But to pay for the longer retire time you need somehow have put aside more money
Yep, if society burdens the individual with the planning of their retirement economics. You could also just expand the pension system, or have whatever funny idea ¯\_(ツ)_/¯.
Look, if we think about western, wealthy societies: if e.g. in Germany tomorrow we have like 2 million more pensioners out of the sudden...do we have a problem supplying them? As in, will supermarkets struggle to provide the food, so that they can eat? Do the houses they live in just vanish? Are clothing stores immediately empty, and they need to freeze during winter?
I'd say no, that wouldn't happen. They would only struggle, because somehow they would not have the money to buy those things, the society still has the means to supply them. So it just is a matter of monetary distribution. And the distribution of said monetary resources is just shit currently, namely to the disadvantage of the poor, the working people and pensioneers. We could fix that.
Obviously, no one thinks
Yeah, right, "obviously no one" 🙄. Except for a lot of people that is not fair. But those are "no one", I see. I, for once, am fine with different compensations. But when people work and cannot afford basic necessities, while others rake in thousands or even millions per day (and even pay less taxes on average, because the tax system favors income from assets over income from work)...that's where 'fair' stops.
It's funny, that everybody wants a 'Wirtschaftswunder' back. As it happens, said 'Wirtschaftswunder' was happening, because the state redistributed wealth to a crazy high degree. But nobody wants to make that connection, because that would mean an ugly fight with the owners. So no 'Wirtschaftswunder' for us, instead low salaries and crumbling infrastructure ¯\_(ツ)_/¯.