[Perdogg]

Because of the increase of the relative mobility of american families which in turn, leads to social isolation, which in turns leads to single-hood.

[NeoCaveman]

And here I thought it was due to feminism

[Swordfished]

Because of the increase of the relative mobility of american families which in turn, leads to social isolation, which in turns leads to single-hood.

I agree. Humans haven't changed, technology, systems, and environments have changed. Just two generations ago people grew up in one town, got a job, married, and died in that town. They had a network of extended family and life-long friends. Now, the extended family is near non-existent for most people. Friends are those you've made in the last 4-5 years, and chances are they'll all move away. Not to mention the alienation and anti-social structure of suburbia.