The beauty as symmetry metric is purely genetic, but yes, grooming can add a lot of beauty points. The other metric is also body type preference, which seems mo

The beauty as symmetry metric is purely genetic, but yes, grooming can add a lot of beauty points. The other metric is also body type preference, which seems more scarcity related - people in food-scarce locations will consider larger bodies attractive, but will change their preferences if they relocate to a different part of the earth. A symmetric person will likely be considered beautiful in rags (unless they’re malnourished) and a non-symmetric person can be considered beautiful with some grooming, both physical and personality wise. The Queer Eye show made this pretty popular, at least in my circles.