Friedman on Poverty Alleviation

1. The argument in page 178 is very interesting, but certainly not unassailable. What are the arguments he uses to reject the “externalities”, “aid to the poor”, and “paternalistic” justifications of subsidized housing? Do you agree?
2. Stereotype: “Libertarians are naïve: they think business people can do no wrong.” In page 181 Friedman says that often do-good policies are supported not by do-gooders but by self-interested parties. How could someone use this example to dispel that stereotype? This point is actually very deep: go back to page 13, to how “the liberal regards the problem of social organization.”
3. Is there any justification for supporting people (poor or not) simply because they are past working age?