The first president with facial hair was Abraham Lincoln, the last was William Howard Taft. In between, just two were clean-shaven. From 1861 to 1913, only 8 years went by with a whiskerless White House. I assume this reflects the prevailing fashion all over the country during those years. And beards are the thing right now, especially among very young men. Not that little Van Dyke that allows an actor to portray his own evil twin; big Old Testament prophet whiskers on these shiny open unformed faces. Walking into a hipster bar is like stumbling into a bearded lady convention.