Abstinence-Only Sex Education

The other day I was having a discussion with a couple of people about abstinence-only sex education and I started thinking about it a bit. Those people who support this method of sex education expect preteens and teens not to engage in sexual acts before marriage and yet everyone demands sex in everything. Sex is used to sell everything from consumer goods, to tv shows, to movies. It's everywhere. It's basically like telling a fat person they can't eat bad or fattening food, but constantly waving twinkies around in their faces or telling a drug addict not to do drugs and then constantly surrounding them with said drug. Obviously, there is a laundry list of other issues with abstinence-only sex education that has been iterated elsewhere, but I just wanted to point out this one inconsistency. To give an example...there was an ad on the ABC family channel a week or so ago for a movie that was made for that channel that was to be coming on soon and the preview show a high school girl leaning over and the top of her underwear showing from the top of her pants...she's wearing and thong...and then another girl calls her thong "granny panties", takes a picture with her camera phone, and sends it out to the whole school. Then later the preview goes on to show one of the high school boys impregnating one girl and potentially another. Um...first of all...this is a "family" channel so the whole plot seems a little mature for middle-school/early high school kids to be watching (which seemed to be the target audience) and second of all...when did a thong become "granny panties"?!? So what? As a teenager what message is this sending? I have to wear a g-string or something...in high school, no less? And then you expect me not to have sex? WTF?