The first thing about social taboos is that they are culture specific. Sweden for example in the late 90s had a strong censorship regarding violence, while nudity was mostly ignored and quite common in movies made for kids and on family prime time on TV.

As two examples of this, Darkwing Duck was banned since people believed it would cause children to kill other children in the play ground. However during similar prime time hours on TV, a other show called "Bullen" (euphemism for female genitalia) was on, and was about teenage relationships with a large focus on sex education. They address topics like masturbation, homosexuality, and relationship advice in the form of viewer mails being illustrated by actors.

Now days, the Swedish taboo culture has changed to mimic the American one, but one notice remnants always pop up when people suddenly feels that Astrid Lindgren movie adaptations should suddenly be censored since they got naked scenes in them.