[theyx]

Exactly. We live in a society with severe social stigma around sexual content/nudity. Even in the 21st century, or more liberal places like Europe, nakedness or sex are not to be shown as “daily human things” like cooking, for example.

As such, actors and especially actresses are of course averse to it. Not only because they grew up in our society, but because it often leads to the fetishization of their image. Do you want to be recognized for the acting you worked hard to learn, or for the 2 minutes of almost-explicit sex with a random person, being watched on-stage by several middle-aged men? One of this options celebrates your talents and hardwork, while the other puts you on the spot in an uncomfortable position with potential negative repercussions for your career.