@Dutchess_III well, as far as I know we have long considered sex to be something immoral. Anything sex related can stir a lot of disapproval. Though right now we are influenced by Western culture and begin to show more tolerance to sex, people still don’t tolerate anyone doing things like showing their boobs or things like that in public. Many see that attitude and use it to attract attention (nude photos, sex talk…). Of course they get their attetion, but mostly disapproval. Sex education is the last thing people want to teach students, and parents are reluctant to answer, or even angered, when theit kids ask them about sex (I myself don’t remember being taught anything about sex by my parents and teachers).
That’s the present day. You can’t imagine how biased we were in the past. Almost nobody talked about sex publicly, and if they did, it had to be hidden very carefully. For example, you write a story about a girl who has a tragic life, when you want to say at one point she is forced to be a prostitute, you only say “she was forced to be a prostitute and lived a horrible life”. End of story, no more description of her prostitute life (or see your book banned!) You won’t believe it, but the sexiest thing of a woman that was officially accepted was the hair!
Now you know how we view boobs…