Here’s the link to the Time mag photospread:
He was 20 at the time the photos were taken and was mugging for the camera as college freshman sometimes do..... was he thinking of running for Pres and therefore needing to be a “good role model” at the time? Who knows.
None of us have any potentially embarrassing photos that were taken in our youth. Just ask Dr Laura. Or videos either... as Pres Bush can confirm.