Is it? I'm living in Germany since so many years and nobody told me this. They send me estimates about the money I'd be getting when retiring regularly, and while it'd mean downsizing, I'd not be poor with the amounts named.
These high pension values are also quite sure to be unsustainable for the government, as the workforce shrinks quite dramatically and people still get older.
Generally, people are advised to put some money for retirement on the side, if they can. If you are in a position to put some money aside probably try to do some research. "Geldanlage für Faule" by Sina Groß is a very down to earth starting place.
Seriously though, in Germany, you always get this sense that everybody seems to know what they are doing until ??it hits the fan and you realize all that time nobody had cared about what's coming.
I wouldn't bet on any of it happening, but predicting the future is always hard.
I wonder where this happy country is. In Germany it is already a common knowledge that relying on state for your retirement is a sure recipe for poverty in the old age.