Isn't it the case that people in the US invest more time participating in their children's education (going to the extremes of homeschooling), yet their pre-college education fares low in comparison? Also wouldn't it have a huge impact on productivity and education inequality if education became a family matter?
People in the US spend much more time working than those in almost any other developed country. Too much time. In Scandinavia overwork is socially unacceptable, while living a balanced life is desirable. For example, workers in the US get no statutory holiday, and most employers give 15 days, whereas in Scandinavia it is stautory 35-39 days depending on country.
As the vast majority of US children are not homeschooled, it's not relevant to the broader discussion. In anycase homeschooling is typically encountered in a religious setting, or remote locations.
Education is already a family matter, children whose parents provide a home environment conducive to learning will learn better, it's an inevitability. The tragedy is that such an environment is usually beyond the means of less wealthy parents, or beyond the abilities of those less-well educated. The solution of course, is good public schools (though the home learner will still be top of the class).
EDIT: I'm British, we have 28 days holiday and overwork is perfectly acceptable here. Our schools are doing poorly because of a mediocre and highly proscriptive curriculum which has reduced the job to spoon-feeding photocopied worksheets, and puts off anyone intelligent from becoming a teacher (the pay is awful too). This is compounded by a severe over-dependence on standardised testing which has further reduced the job to spoon-feeding only the photocopied worksheet required to pass the next test, and resulted in massive grade inflation for over a decade. Rote learning is the only lending, and there is little to no actual understanding anymore. But people think that the government should fix education, as it is a public endeavour, even if this means admitting that the government don't have a clue and simply using public money to fund private schools (see Charter Schools) which is the latest experiment, and so far seem to be working.
This paper compares the working hours and life satisfaction of Americans and Europeans using the World Values Survey, Eurobarometer and General Social Survey. The purpose is to explore the relationship between working hours and happiness in Europe and America. Previous research on the topic does not test the premise that working more makes Americans happier than Europeans. The findings suggest that Americans may be happier working more because they believe more than Europeans do that hard work is associated with success.