It really depends on where you live. I lived in Taipei and cycled around everywhere in that city. There were sometimes bike lanes on the street, and sometimes wide sidewalks with bike lanes, and sometimes neither. Drivers were pretty reasonable most of the time. I felt I could manage the risks by cycling conservatively and assuming drivers didn't see me.

I'm in Los Angeles now. While I miss biking dearly, I look at drivers around here and just think it's a matter of when, not if, I'd get into a cycling accident if I tried to ride within a few miles of my home.