> > While I'm sure that there are some women that dress like that, most
> > are probably Amish. I certainly wasn't aware that some American
> > think women should dress like that. I know there are a lot of
> > people who feel that women dress to provocatively these days, but
> > I'm not sure if they feel that that's what they should be wearing.
> I know about Amish people, but I've also seen on the web other
> American Christians who are proponents of this kind of dress... For
> example, the pictures I posted earlier come from a blog written by a
> woman who is - if I read correctly - Protestant:
Well, this very page shows what most American Christian women would consider modest. Most women, in my neck of the woods at least, wear somewhat more revealing clothing (except for the few weeks of the year we get down below 15°C).
> Other site I found on the web is, for example, this webpage by a
> female Quaker:
> And there are certainly more. So, I really wondered, how common those
> views are in America?
I'd be surprised if they even made up 1% of the population, 2% at the very most. Apart from the few Amish I'd run into when I lived in the Pennsylvania area, no woman I know would be caught dead in such clothes. Going out in public like this will likely cause people to stare and/or ridicule (unless it's Halloween, or Mardi Gras in my area, then they'll think it's a costume).
The best way to judge what's deemed "modest dress" by the vast majority of people in the US is to download some episodes of Network TV series, particularly sitcoms.