I work on an Indian Reservation. There are all sorts coming and going to convert and save the Natives. A group of ladies Jehovah Witnesses about once a week....all in skirts or dresses. Are they not allowed to wear pants?
I don't think it's a rule per se, you probably won't find it in writing that women aren't allowed to wear pants but it's part of the culture because it's so heavily implied it through teachings from their platforms and pictures in their literature. They use the same tactics with men to try to make it seem as though growing a beard is a bad thing. They'll even go so far as to tell someone who doesn't follow the counsel of the elders that they don't qualify for 'privileges' which are things things you need to do if you ever want to be an elder or viewed as exemplary. I've never seen an elder with a beard, and in a brochure picture they depicted a woman wearing what I would call dress pants like the type you'd see in a professional setting..they circled those pants along with other things like a golf shirt on a man and said these things overly casual. It's a very controlling environment.
When I see them coming to my door, I make sure I'm not wearing pants, too.
Or anything else.
I rarely see them twice.
While not absolutely certain, I don't think they are allowed to wear pants out in public. What a rotten thing to do to the natives, I hope they ignore the JW cultists.