> I can understand why bicycles are popular in Denmark. (Not many hills?)

Bingo! In fact, we ...
(realizes how long a story that could be)
I run orienteering. Just recently, the veteran world championships were held in Jutland (Western Denmark) in one of the most hilly regions of the country. For that occasion, new maps had been drawn, and so that everybody might understand where they had been, every name on the map which could be, was translated into English. That included Sky Mountain. Please, don't laugh too loud when I tell you that this reaches 147m above sea level. The highest point in Denmark is 173m. That is, the highest _natural_ point: They just built a bridge with pillars taller than that.

> But how do people survive on a scooter in the winter?

Hmmm.. If I could be allowed to offload another mound of dirt in this forum, I'll say it's because we don't get real winters here, only slush and rain.

But other than that, I suppose that danes are just like everyone else who don't make ardous journeys if a more comfortable alternative is possible. Like the car ...