The historical criteria for Spain seems dubious. It posits the ahistorical existence of a "Kingdom of Spain" from 1479 on, when this political entity didn't come to be until several centuries later (despite some monarchs using the title "King of Spain". For that matter, the current Spanish King holds the title of "King of Jerusalem", but to my awareness no Kingdom of Jerusalem actually exists today).
This is an interesting take. When I taught low-income Muslim students from North Africa I was told that having a beard (which I already had) would help to establish myself as a figure of authority, as they would associate it with their conception of what a "scholarly figure" looks like. Similarly, women in both Academia and the corporate world have told me that they had chosen not to dye their graying hair in order to consolidate their image as a "serious, professional woman".
