OK, since everyone is dropping thier 2 cents, here is mine.
The teenage mind is still WILDLY immature and impressionable. I would rather talk to my children, to discuss with them what is appropriate, then to have them see sexual content on TV over and over again until they think it is appropriate. Read any study by Bandura... Violence is violence, whether real or virtual. And aggression is more potent when seen on a video than when live. Twenty years ago, things were only talked about in whispers in the back alley, today they are on prime-time televison and on the evening news. So you have to wonder- Is art imitating life or is life imitating art?
Where is the thin line between "Not raising them in a bubble" and desensitizing them to what they are viewing over and over?
My kids don't watch tween shows becasue really, they could care less. I don't let them watch the Japanamation shows on cartoon network because they don't need to see the cartoons making out and talking about delivering babies at age 7 and 8. I don't blatantly turn on the parental block and walk out, I let them know that there are way better things to watch and we TALK about it. i tell them WHY they can't have open chat on any of the websites they visit.
Now, as to the "raised in a bubble" matter. Yes, my parents sheltered me. My mom put a block on MTV so I couldn't watch Beevis and Butthead and what passed for music at that time. I lived. I never watched an R rated movie until I was 18. In high school there an extra credit assignment to watch Schindler's List in the theater, I passed. i know that those things happen, I don't need to see it, and have it replay in my mind when I closed my eyes. Thats just me. i also had enough common sense to police myself. When a friend found his dad's porno collection (back before the internet) I walked out. And before long, they knew i would walk out, and stopped putting them in when I was around.
The choices I made in life? Well, 3 of my group of friends had babies before they graduated. I never had sex until I was an adult. I knew about the seedly life of teenage-hoood, but i was not a part of it, and my friends knew that. It is possible to be of the world and yet not in that world. I had the home that everyone wanted to come to. A friend even came to my house one night when i was out of town and stayed with my parents, because she knew it was a safe place.
So if I am wrong or naive for trying to provide that safe home for my children?
The title of one of my favorite books- IT TAKES A PARENT TO RAISE A CHILD.