I would certainly not commute by bike if we didn't have bike-paths everywhere and I had to be on the same streets as cars, buses and trucks!
Fair weather is good, but seperate paths is the alpha and omega in a city where all can afford cars and PT is omnipresent, rapid and fairly priced..
Gas for commuting is covered by the state so that's technically free to Danes..
As for the "old windy poor roads" I'm very curious about those - outside the Old Town where most have been converted to pedestrian streets exactly where would they be? ( feel free to link to Google Street view ) I don't think Copenhagen is any less car friendly than any other city I've been to..
As far as age and roads Copenhagen started sprawling big time about 130 years ago and is if anything very similar to North American cities - right down to majority living in single story homes
in the sprawling suburbs.. ( less pop density than LA btw )
For a person who commutes by bike daily what is crucially important to me is:
- separate bike-paths and bike friendly infrastructure ( separate and synchronized light signals, road painting, signs, etc )
- no helmet laws ( if I have to wash my hair every time I get to work it would be even faster to drive or take PT making biking a slow and impractical choice )
- no extra insurance demands ( while it of course is possible to cause damages while biking it should be covered by regular insurance and not separate like motorbikes and other vehicles that travels at much faster speeds )
What would make more bike here:
- tax deductible ( like people here can deduct their PT and car commuting expenses why not bikes, they have talked about it for a long time but nothing have happened )
- bike freeways above street level or tunnels ( a few small stretches is under construction, but a wast network with no red lights and no stops would be great! )
- mandatory bike cams on trucks and buses that enters urban areas ( especially on foreign trucks that is not used to bikes and sadly kills bikers every year here )
What I think should be law:
- a bike drivers licence test that one had to pass to be able to purchase bikes and use them
- small bike licence plates with a NFC chip to prevent theft and insurance fraud