Young people need to be prepared for adulthood so that they are ready to use their genitals properly and safely. Madame shows them the technique of intercourse, teaches them how to suck and swallow and demonstrates by personal example how to get an orgasm. The young men really liked the lesson - they absorb all the knowledge with genuine interest. The adult woman seems quite happy with the result. I have no doubt they will repeat the lesson on their own!
It's certainly easier for female students in terms of exams. It is not often that female teachers can take advantage of male students for the same purpose, but male teachers are not squeamish about it. Girls are good, they know what they want to achieve in life and pursue these goals, in spite of the bans and public opinion. I wondered if I should have chosen a different profession...