First of all, I'm pretty shocked to see how many kids (and parents who have watched with their kids) have reviewed this show. Let's be clear: It is not for anyone under 18. This show has a fantastic plot and interesting characters, but unfortunately can't go 5 minutes without someone being beheaded, having sex or cursing. The sex is more graphic (and frequent) than some softcore porn, the language is such that a sailor would wince (f*** and c*** ,among others, pop up often), the violence is graphic and disturbing, the positive role models are scarce. Nudity and sex are absolutely fine when called for, but it really disappointed me how chauvenistic and sexually one sided it ended up being. Every single woman on the show between the ages of 18 and 35 appears naked at least once (and that is not an exaggeration). The sex is very graphic and almost always one sided (male nudity was shown less than a handful of times per season where female nudity was shown several times per episode). The show relies heavily on shock value (a 7 or 8 year old child sucking on the nipple of a character supposed to be his mother, a man who "marries" and has sex with his underage daughters then "marries" and has sex with their underage daughters, etc.) to the point where it is predictable and expected. It's sad because the show has many merits...I just wish they would realize that women (and apparently 13 year old kids) watch this show, too.
To summarize: Not in a million years acceptable for kids. Acceptable only for adults who want to see a really interesting story play out and can handle watching repeated scenes of rape, incest, graphic nudity, graphic sex, torture, gruesome deaths, mutilation and prostitution.