In democration climate, everything can be showed in televisions, newspapers, magazines, websites, or blogs. But if you don't choose the television programs and you do some mistakes by choosing the wrong newspapers, magazines, films, or video games to your children this is dangerous for your future family. Their bodies will be adult too fast and faster than their thinking, so their sex instincts will be sex animal instincts.
In Indonesia, you can see porn advertisements those show part of breast or buttock and children watch them. I ever saw in a television new that children was playing spotlights if spotlights on, children can see porn in the wall. So don't shock if in Indonesia ever a man child violated a woman child because he ever watched striptease dance in video.
I think it is dangerous to your children so prevent your children from porn and educate your children with islam.