Earlier quoted context omitted.
There is nothing sad about this. Mandatory pensions are not a vacation sponsored by the government but a way to provide for those who can't provide for themselves. If you were born in the 70s, you should have known for most of your adult life that your normal retirement age is likely going to be around 70. The demographic situation is not new, the solutions have been discussed extensively since at least the 90s, and…
I guess this comes down to whether you view what you get back for devoting most of a life to work as a negotiated agreement with government or as a one way street.
As a citizen, your moral duty is to contribute when you can. If too many people fail to do that, the system falls apart. In exchange, the government evens the burden between different stages of life and between people in different situations. You live your life now, the government takes what it needs, and it provides for you when your needs exceed your ability.
Also, as small democratic countries with limited ambitions outside their borders, the Nordic system of governance is supposed to be more "by the people, for the people" than it has ever been in the US. You don't negotiate agreements with the government, but you take responsibility for making things work. If too many citizens fail to do that, the system falls apart.