This clothing suggests they are on their way to some sort of significant celebration or holy day service. Not all Orthodox Jews dress in such obvious ways. read more
Orthodox women dress modestly because they are commanded to in the Torah. And men dress the way they do with the strings called tzitit and a Kipah because they are commanded to. If you mean by the white shirt and black pants, that is purely cultural. read more
Hi, speaking as an orthodox jew here. As it happens, there are many sects within the category "orthodox jews". Some do not tend to dress in this demeanor, such as most of the "modern orthodox" and many of the "standard orthodox". They dress in a typical manner, for the most part. read more