Surely most people in the US have hobbies at least in the minimal sense of downtime activities that they enjoy. It may not be golf or hobby programming, but even laying on the couch watching football is a "hobby" or sorts and takes up just as much time.

I realize there are people with young kids or 2-3 jobs that really have little to no downtime, but it seems that for most people time isn't really the issue - it's just are you more of a passive or active type of personality.