Metoodear, my kids (8 to 15) cannot watch just anything, but I do find it interesting how many people have more of a problems with their children being exposed to sex rather than violence.
IMO it's the depiction of sex, the kind of sex, that is increasingly shown in fairly mainstream programs, that is the problem, not the concept of 'consenting adults doing pleasurable things to each other'.
Game of Thrones is a really good example of that: totally unnecessary sex scenes, far more of them and more drawn out than in the books. They are there to titillate an adult audience and, I agree with you, are not for young viewers.
However, I don't have a problem with my children seeing kissing, hugging, people giggling under bed sheets etc. It's exploitative, semi-pornographic sex that does not add to the plot that I object to.
But I have the same problem with 'unnecessary' violence, drawn out torture scenes, for instance, where I cannot help but wonder what kind of a viewing desire is being catered for here
.
And don't get me started on sexualised violence - now there's something I can barely stand to watch and I would do rather a lot to protect my DCs from.