I went to a school where nuns wore full-length clothing and headwear. But their faces were not covered. The requirement or choice, wherever it comes from, for women (always just women, never men) to cover their faces as well as everything else, is weird. It is hard to understand. I do understand the liberation idea about being covered/hidden by a voluminous garment. But faces and facial expressions for human beings, for all primates, a extremely important. Face coverings, except for protection in extreme conditions, are weird.