Those sages observe that the dwarves live underground and are therefore sheltered from the surface horrors. Others disagree with that theory, pointing out that there are stories of ancient terrors hidden far beneath the Land of the Mists. To them, the dwarves are stern and strong because of their encounters with subterranean horrors. Dwarves in Ravenloft dislike idle chatter and will speak when they need to. Jokes are not told by them.
Dwarven songs are dirgelike.
There are no dwarven holidays or festivals. Most non-dwarves consider dwarves a dour race. Dwarves are also hard workers who will not tolerate laziness. Such a somber race well fits the dark domain of Ravenloft. Dwarves like jewelry and collect gold and other precious metals through their mines, which they run efficiently and make high profit from.