Re: Answer
What is happening is that even mentioning abstinence as the most workable option among others brings the wrath of the Left down upon the hapless teachers. The idea seems to be that if we're not very, very careful morality may be brought into the discussion somewhere, and then...who knows? The values of stable, committed marriage and family start creeping in, and the whole "Do whatever the hell you like" liberal code goes down the drain.
Can't have that.