Total Nonsense
Sex is good and best when it's personal and and outcome of mutual understanding and romance in a couple,
It's not a Science or educational subject which could be taught in Schools.
If movie is taking base of Upanishads and old Hindu Schooling syllabus, then even those books were wrong and immoral for society including nude monuments of Ajanta and Ellora, those pornographic based monuments should be destroyed/ banned by government for tourism.
I admire current Education system which totally ignores Sex education, because this education can be self learned by couples after marriage, and has no role in Career development of students , on the other hand sex education will further distract focus and concentration of students from other important subjects like Maths Science etc., and will also make students emotionally disturbed and physically and mentally distracted from path of Career development.