Country size has nothing to do with it. Tearing down downtowns to put in parking lots, forcing buildings to be surrounded by seas of asphalt, and density restrictions could be related.
Also it should be mentioned that your driving makes the city less pleasant and more dangerous to walk or cycle in, encouraging others to drive, in an unfortunate feedback loop.
You are making too many assumptions. It's easy to design city centers so it's not worth the trouble for most people to drive through them. Downtown my city is like that. We drive around it. I have seen the opposite, your worst case, but that's their fault. And ya, distance matters. I live only ~6 miles from where I work, and I rode a bike for a year, but I can drive it in a fraction of the time and then not worry about changing plans or going somewhere much further away without first pedaling myself home.
Also it should be mentioned that your driving makes the city less pleasant and more dangerous to walk or cycle in, encouraging others to drive, in an unfortunate feedback loop.