(1) A family of four means four people (2) $40k/year is enough money to support four people (or even six), if you've already paid taxes and rent. That's more t

(1) A family of four means four people (2) $40k/year is enough money to support four people (or even six), if you've already paid taxes and rent. That's more than $500-800 per month for food/clothes/transportation/entertainment, etc. (3) Middle-income parents spend about $7,000 a year per child (or $600/mo), not counting housing. [http://www.usda.gov/wps/portal/usda/usdahome?contentid=2014/08/0179.xml&contentidonly=true http://www.usda.gov/wps/portal/usda/usdahome?contentid=2014/...] Of course, many people would like families to get more than $150,000 of income, but I hope we all agree that it's common to get by on less than $150,000 of family income, as most families do.