As an American, I think this may be the hardest thing to wrap my head around. Since I was a kid I (and anecdotally, many of my peers) have been told to never rely on a government or business-sponsored pension. What happens if the government swings in a different direction in the 3 decades before I retire? What if a couple bad administrations screw things up? What if the company who has my pension goes under or poorly invests it?
It seems that having nothing saved for yourself for your decades-away end of life care is putting A LOT of trust in a system that is less than 100 years old. I think this is where my desire to trade earnings for government services comes from... I can't guarantee that the services will be there for me, but if I manage my money conservatively I can more-or-less guarantee that it will be there.
Keep in mind that I'm also a software engineer, giving me the privilege to choose higher earnings over government services. If I were lower-income or in a line with less future earnings potential I might feel differently.