I had a question regarding hair loss. In a perfect world, if hair loss did not exist, would males just have just a mature hair line which doesn’t indicate hair loss?
Yes, but 95% of Caucasian men develop a mature hairline, less among among Asians, Indians and Africans as each ethnic group may or may not develop a mature hairline. For those that do not, then they maintain their juvenile hairline like Bill Clinton did. He has had some erosion of his hairline but the line I drew is where his hairline was before he had his hear attack.