I disagree. It only matters what you're willing to be happy with, and what is "enough". The fact that literally millions of families live on way less than tha

I disagree. It only matters what you're willing to be happy with, and what is "enough". The fact that literally millions of families live on way less than that amount is, at least, a proof-of-concept of the sufficiency of the money. As for the actual number: San Francisco and New York may be expensive, but median household income is still only in the 60-80K range [0][1], and with fully half the population living on less than the median, I'm going to stand by my claim that $70K is possible to support a family on, even before considering the earning potential of the spouse who wants more money coming in. [0] http://www.deptofnumbers.com/income/california/san-francisco/ http://www.deptofnumbers.com/income/california/san-francisco... [1] http://www.deptofnumbers.com/income/new-york/new-york/ http://www.deptofnumbers.com/income/new-york/new-york/