the best unsecured loan that i have taken is 0% and $0 admin fee. i am not bluffing.
What was the term? 30 years? 40?
You apparently think you're invincible until you die, perhaps longer. The entire world's financial market thinks your unsecured promise is worth much, much less than the unsecured, long-term promise of even a poorly credit rated sovereign. Your hypothesis is perfectly testable in the global market, and the test fails.(*) Ergo, in developed (and even in some developing) countries, we have compulsory longevity insurance of some kind. And thank goodness. Singapore's (CPF LIFE) is probably the most timid requirement of its kind in the developed world, and it's truly world class in its value-for-dollar. Yet you still complain. Whatever.
Actress Erin Moran died a couple days ago. She was 56, so she didn't collect any U.S. Social Security retirement benefits. She co-starred in the monster hit TV series "Happy Days," starred in a spinoff sequel, had guest starring roles on various TV series, and earned some income from fan convention appearances. She was financially set for life. Except...she died broke, even before she reached minimum Social Security age (62). She was living in a trailer home in Indiana with her family when she died. It can happen, it has happened. Developed countries try to take care of their citizens, to protect against the worst possible downside risks. It's really important that they do that well. All of us are fallible.
(*) As an interesting historical footnote, very rarely the financial market makes a different assessment. One rare example occurred in the late 18th century, when the rebellious British colonies in North America, now known as the United States, had a fairly dysfunctional legislature called the Continental Congress and uncertain future prospects. A Philadelphia-based financier,
Robert Morris, had a better personal credit rating than the Continental Congress. He believed in independence, so he personally co-signed many of the debt instruments that the Continental Congress issued in order to raise funds for an army to fight the British. (Those lenders didn't get fully repaid, as it happens.) Anyway, the point is that this is not an academic exercise, to test a risk hypothesis in the financial market. The financial markets are perfectly willing to judge an individual's credit risk as lower than a sovereign's. It doesn't happen very often, but occasionally it happens. It is a real, valid test.