Some of these people hit the nail on the head. The issue is FAR wider than kite culture. It's culture in general. The difference in American culture is immesely different compared to most other advanced countries.
CNN just had an article on this this past week (Really worth a look)
http://cnnpressroom.blogs.cnn.com/2014/ ... =allsearch
You'd be surprised at how poorly the US ranks at health and welness (70th!). We are pretty far down this list because we work and eat...rinse and repeat. Companies take take take and we love to put in those extra hours to work our way to the top. Our society has the sterotype of rewarding those who work late hours in to the night. While in some European countries its illegal to check your work email after 5pm.
I'm born and bred American and have lived here all my life, but I say we have a lot to learn from our friends overseas when it comes to slowing down to enjoy life. I envy that part of your culture. I'd love to see Americans stop and smell the roses more.
Hell my first 10 years out of college I worked and worked and then worked some more. Now at almost 40 my peers look down on me at 5pm when I close my laptop and shut down only for everyone else to put in another hour or two. I don't eat at my desk either and scarf down my food. I get out at lunch and walk, go to the park. To hell with Comporate America. Yes there are opportunities but it will also be a cancer in your life if you let it.