In Afghanistan culture all women in all parts of Afghanistan wear the burqa or chadori. On the other hand, many urbanised women in Kabul, Herat and Mazar-i-Sharif don't wear the burqa but rather put on the middle eastern style hijab, which is similar to Iranian fashion. Burqa or chadori is also rather uncommon in the Wakhan valley, which borders with Tajikistan. Western women are highly encouraged to wear a headscarf (especially outside Kabul).
Showing the bottom of the foot is considered rude in Afghan culture.
The farther south you go the more conservative the people are. Nevertheless, the average Pashtun, as well as other Afghans, follow a strict code of hospitality.