I am not saying they should stop teaching about sex,they don't have to be so graphic, and yes I think abstinence will help to stop kids from having sex. There seems to be a notion that sex is fine go to it....
I agree that abstinence will stop kids from having sex, but getting them (or anyone)to abstain is the trick. You would have to stop almost all advertising. It just won't happen, not as long as sex sells...and how do you keep from having sex sell, it's what a lot of people do, worldwide, (except in most Muslim countries)?