Wrong on both counts. A significant factor for height is nutrition, which is why average/median height increases often accompany increases in prosperity. It's

Wrong on both counts. A significant factor for height is nutrition, which is why average/median height increases often accompany increases in prosperity. It's only among the already-prosperous that genetic factors come to the fore. Let's look at attractiveness. Of course diet and exercise help Does everyone have the same dietary freedom or metabolism? Does everyone have the same capacity for exercise? Of course not. There are literally thousands of medical conditions that can have an effect here, as well as social factors. Is a particular color/texture of hair or skin more attractive? Both genetics (including race) and medical conditions can render someone "less attractive" by those measures. Then there's makeup, clothing, social norms (of which "thin is in" is a particularly pernicious example), etc. Implying that attractiveness can be a proxy for discipline is absurd. Why would anyone try to excuse "pretty people" bias?