Not surprised because most people in the world only have time to work/commute/sleep. Stuff like hobbies, sabbaticals, vacations, etc are quite rare. I've only seen the contrary when I met Europeans.
Domestic tourism is massive even in countries with terrible work culture like China, so your claim is not particularly strong. Either way, hobbies and holidays are certainly not unique to NA and Europe.
I don't think your initial claim is well supported considering the size of domestic travel and entertainment sectors in most of the world (although I'll admit that the way people allocate non-work activities in many places may not lead to a relaxed life in the way, say, a Swiss person on a sabbatical has). Points 1 and 2 in this recent comment are different ones again, though and not ones I disagree with.
Not so sure about hobbies being a European thing. Take Japan, for example. Japan has a work culture/pressure which is considered pretty extreme (Korea is maybe worse, from what I read). I know people with work hours from early morning to 11pm, and a neighbor who drives out at 5:30am and is back way after dark): There are many more people with active hobbies than in my native Europe. With work taking so much time, people seem to learn to manage their time much better than many (much more than I can, definitely) and they squeeze in various hobbies in a very efficient way. That's one of the reasons I like living there, there's much more to do together with other people.