While reading through my copy Curse of Strahd. The section on Sunlight in Barovia got me thinking. Here is the same text from the Adventures League Dungeon Master's guide version 4.0:
"Barovian daylight is bright light, yet it isn’t considered sunlight for the purpose of effects and vulnerabilities, such as a vampire’s, tied to sunlight."
Based on this text I'm tempted to let Dark Elf and Gray Dwarf PCs not have the negative effects of sunlight sensitivity while in Barovia. On the one hand I'm of the opinion that if it's not broke don't fix it. On the other hand it might make this adventure a little more memorable.
Thoughts and opinions?
I think, at least with regard to drow, it's fairly clear. Drow are specifically sensitive to sunlight, and the light of day in Barovia apparently isn't. Something like a Shadow Demon, which is sensitive to bright light, would still be affected.