Over three decades ago I moved to the "Bike Capital of the World", Davis, CA. At that time, we created a culture in which over 80% of all trips were made by bicycle. The most effective thing that was done to create this was to convince the local police departments to adopt a zero-tolerance policy towards traffic violations (including cyclists). The minimal amount of cycle-specific infrastructure that was put in place did not have much of an impact. (By the way, the police departments changed their priorities in the mid-'80s with a predictable outcome: the bikes all but disappeared.)
The Netherlands has chosen a different approach that I think will limit its success to not much better than it currently enjoys. By segregating cyclists onto side-paths, it cannot accommodate any further increases in bike usage without vastly increased congestion, which will increase the attractiveness of the automobile. They will either have to reallocate their space to allow for more cyclists, accept that segregation has limited their top-end for bike use or reconsider the entire notion of segregation.