Hasn't clean-shaven been the norm for most of American history?
Iirc the Founding Fathers were clean-shaven, as were the first fifteen presidents. with the partial exception of Martin Van Buren, who had side whiskers. There was a fashion for beards around the Civil War period, with Lincoln, Grant, Hayes, Garfield, and Harrison having them while Chester Arthur had side-whiskers. Since then all Presidents have been clean-shaven, though Charles Evans Hughes came within a whisker

of making an exception. It may be significant, though, that Hughes came close only in Electoral votes, being half a million behind in popular ones. No bearded POTUS has won the
popular vote since Garfield.
Incidentally, a similar pattern holds among Presidents of the Church. Joseph Smith was clean shaven as was Brigham Young until at least 1855. The next six Prophets were bearded, but the last of these, George Albert Smith, was born in 1870. All Presidents since David O McKay (b1873) have been clean shaven.