Principals should not be teaching kids how to give oral sex! Or any other kind of sex. Sex is something only parents should guide and instruct.
Our kids were enrolled in a unique program where the school merely sponsored the education. Parents and kids came to the classes together. No parent, no kid allowed in. The instructor gave an introduction, there was some discussion, question and answer, and handed out materials to kids and to parents. Then parent and child talked alone together while. When they went home there was a more lengthy, intimate discussion. There was a series of 7 more classes for the year, and there were classes each year for a number of grade levels.
It fostered communication between parent and child, the most important aspect of sex education. It originated in Pittsfield, MA. as a response to a very high teen pregnancy rate. That rate plummeted after the program was instituted. It’s called LAMO- Learning About Myself and Others. It presented a balanced idea that sex was not just physical, but social, moral, personal, emotional, familial, etc. A specifically Catholic version was developed later. Not sure what happened to it; it seems to have vanished these days.