I meant culture of living. Things like cities with lots of parks and pedestrian zones, more walking/less dependency on cars, hidden coffee shops between old buildings, ability to live decently on a very small budget, free education and healthcare, generally easier to make friends, specially if you are a foreigner - things like that.

I would not necessarily compare Serbians to conservatives in US (we are both generalizing now). What you may have experienced in general is 'caution' because that region of the world experienced wars every 30 years on average for the last 1000 years (unlike US). So it's not like its resisting change, but the progress was hindered so many times, having to rebuild everything from scratch. And it is hard to be 'liberal' in an environment where in some places you do not have basic infrastructure. Political 'progressive' thinking usually comes after you solved basic needs. That's just my assessment.