From 1980 to today the population has increased by roughly 36% while college enrollment increased by roughly 68%. More people feel they need to go to college to get a job, so when they say, "in 1961, full-time students spent about 40 hours each week in class and studying. By 2003, they were investing about 27 hours a week." That shouldn't indicate as implied by the article that we are becoming lazier, merely there is a larger percentage of the population in the mix.
1) http://nces.ed.gov/fastfacts/display.asp?id=98
2) http://en.wikipedia.org/wiki/Demographics_of_the_United_Stat...