Sex in the home! Depends just what that is.As Graham says many of the worlds population of children are used to the idea of sex between adults(though some are more than familiar of sex between adults and children sadly)and live daily with the idea that sex is part of life.Even your teenagers will be aware that it must have taken place at one point for them to be around for you as a parent to embarrass with the icky idea that their parents may STILL be having sex.
The natural sexual act between adults who actually love one another is hardly something children need protecting from.
What concerns me is the sex education children get.Most parents won't /don't talk about issues that they SHOULD address because there are issues that are not taught in school.Give a child a good sex education backed up by sensible intervention from parents and I can't see anyone being damaged by seeing anyone having sex.I've seen no discussion about porn and the porn industry taking place in school and I very much doubt that it is discussed in many homes.
I'm MORE concerned by children/teenagers watching/seeing porn in a vacuum without anyone to point out the dangers of say seeing a man or a woman purely as a sexual object rather than a living breathing human being.There is the issue of violence and sex that I think needs to be handled and discussed with teenagers.Sexuality is another issue that hardly ever gets a reasoned discussion with teenagers.
Incog.