I am in Tokyo, Japan. As an avid cyclist I have been observing the locals to see what their preferences are. My bias is towards fixed gear bikes. I have seen exactly one. A typical messenger bike.
On the other hand I have seen (in about one week) thousands of folders. Some have preposterous brand names. For example, I have seen 5 with the Chevrolet logo on them (spirit of america). BMW, and the other car manufacturers are also represented. There also are many other locally manufactured folding bikes. In contrast to the Japanese penchant for modernity most are primitive and seem to be from the 60"s or 70's. Same goes for their non-folding bike culture. Very old.
Nevertheless it is refreshing to see ordinary people in regular garb riding bikes for utilitarian purposes.
I will continue to observe.