And what happens when the economy goes bust when you're running down your investment in your retirement years? Or if you can't invest or save due to the many rent-seeking behaviors we see nowadays? Do we just let them die because they had the misfortune of bad timing or being take advantage of?

For 5: Even in those non-American societies they have recognized that leaning 100% on your family is generally a bad thing for working professionals. Or at least those companies are not willing to pay for their employees to take care of their elderly or disabled family members.