[AJ007]

You still have property taxes, maintenance, and upkeep costs on a home. In condo/co-op situations you have a building maintenance fee. In an urban environment it is difficult or impossible to be self sustaining because there just is not enough land to do so.

An article (I can't reference) in the WSJ on the Greek economic crises discussed a middle aged adult who left a job in Athens, returning home to the country side to milk goats, his income dropping to a few hundred dollars a month. At least there was a country side to return to.

I would argue that a good portion of the "reason we don't work 15 hours a week" is related to government policy. I am speaking globally here, not isolating one country or another. Government policies raise property taxes, rezone areas, sometimes seize property for development (happening at mass scale in China), and do a whole lot of other things to increase economic activity. Generally, an individual sitting in a home not doing much does not maximize the growth of the particular municipality or nation. Thus, that individual finds themselves with many opposed to his or her interests. The only defense is both very strong property right laws and a general belief system ready to support them.