In my view, the most striking feature of the Dutch solution is that it's not a type of bike, but a transportation system developed over a span of years within a specific niche of climate, terrain, population density, and so forth. Cargo bikes came after the system was already up and running.

Moving any specific component of that system to another niche might help a little, and I'd welcome any progress, but is not a solution.

With that said, I'm a year around bike commuter. Cargo bikes, trailers, and baekfiets are gaining popularity in my locale, especially the electrics.