Maybe because white recall the snow and the warm soft fur of some winter outfits XD It could be useful wear a warm shiro loli dress in cold months like December or January, I think it would be a pain go out with a light dress with bare arms/legs while it's 5░ XD
I agree, but snow is cold. And there is scientific evidence that darker colors have more heat in them than lighter colors. Therefore, it would help the person not to freeze if they wore darker colors in the winter. I always associated with shiro-lolita with summer for that reason.
yeah it's true, we can say that it depends from person to person, or also from country to country :3 anyway, I'm gonna advance a thing: I'll draw another lolita dresses collection, and this one will be a Lolita Dresses Winter Collection <3 a winter-y version of some lolita styles XD