You can not understand this sort of thing if you model humans as idealized Vulcans. You have to understand that sex and nudity and such are all tied up not just with our forebrain, but with our irrational hindbrains, and we don&#x27;t get to choose what &quot;programs&quot; those are running. I&#x27;m not saying I have a really easy answer, just that being mystified by these sorts of things is an indication that you&#x27;re running on the wrong model of human minds. These issues are real, and the nudity is merely a player on a complicated game board of deep human currents of sex, power, hierarchy, and public morality, its need to be enforced, and it&#x27;s need to be <i>seen</i> being enforced (important not to model those as the same thing!), playing out in a complicated iterated group social game.<p>Further, it&#x27;s worth pointing out that the people painting the nudity were not Vulcans neutrally painting &quot;just what reality is&quot; either. The painters set out to push certain buttons with those paintings, and the fact that people react is a measure of the fact they succeed. It should hardly be a mystery that people have further responses to the fact certain buttons are being pushed; indeed, it would be a mystery if they did just consider it no different than a painting of a bowl of fruit.