This is because of their low birth rate primarily right? I think the system has failed at this point, when you are expected to work that long.
No. It is about how the system is funded. If pensions were funded by actual retirement accounts, where employees invested money into some state fund and have it paid out for retirement this would be entirely unproblematic. But the pension system in many EU countries is set up in a way in which tax contributions now finance pensions now . This can only work with a steadily growing economy which continually generates m…
You're talking about a system of pension by capitalization, like in US, which comes with its own problems.
Namely that if you reach retirement age during a crash like in 2008, you're screwed. You have to work 5 more years hoping the market recovers in the meantime, or retire anyway and get way less than you put in.