Guess what? Work life balance has been written into law in Australia. http://www.careerandkids.com/work-life-balance-its-the-law/.
The following link, under "policies," delineates some of the US's policies – like the Family Leave Medical Act. However, it seems to fairly common knowledge that the US is lackluster in it's family-oriented policies compared to other wealthy nations.
http://en.wikipedia.org/wiki/Work-life_balance
We – and our employers – need to be the champions of our own work life balance solutions. We are the new generation of necessity entrepreneurs.