This is also the case for Spain. Since I was a teenager (also in my 30s) it was a pretty common theme. Not only pensions, but pretty much everything is a scheme where yougnsters are doomed no matter what.
I remember my history teacher telling us about it and people saying they knew, and they also knew that they couldn't change it unless boomers were on board, which they weren't at the time, and definitely still in the same position.
Lived in Europe for four years and come back to my resident American hellhole and now the gray-haired extremists stacked our highest court so they can ban abortion after they legalized it when they were young and in control of society... slowly but surely turning towards fascism as a last ditch attempt to create the world that they dreamed of in their childhood while talking about "love and peace"... funnily enough just like the old Russians currently throwing a tantrum because their precious dream the USSR died.
Scholz and co. are too self-centered to accept a hit to their economy in exchange for de-clawing the next Hitler. Rutte and co. are too greedy to allow for a deeper union. Macron has a business-friendly "mandate" despite only being elected for not being Le Pen. We are all tired of the largesse of the old and the few.
I remember my history teacher telling us about it and people saying they knew, and they also knew that they couldn't change it unless boomers were on board, which they weren't at the time, and definitely still in the same position.