Teachers will coerce students to have sex, that is, by virtue of their own teacher status. First, they will cajole college students into saying that they can attract students by improving their credits, getting scholarships, walking and finding a good job. If students don't submit, they will directly threaten others, saying that they can't graduate, and give her hard shoes and so on. In school, teachers have great power. Those female students who were afraid probably gave in because of their poor family and fear that they could not graduate. Because for these students, they rely on going to college to change their fate, and they will choose to compromise.
It will also happen that teachers and students are congenial. Some students will have an inexplicable sense of admiration for their teachers and will have feelings for each other. If the teacher is single, students and teachers will be together. I don't think it's a big deal, nor does it violate any ethics. Love has come, and no one can stop it. There was a time when I worshipped my teacher, but it was just a kind of worship, not a love between men and women.
In either case, as long as one's own interests are harmed, one must resist.