MIT倒是網開一麵對研究生，但是對本科生堅決不行。這些學校和我理解得完全一致

https://policies.mit.edu/policies-procedures/90-relations-and-responsibilities-within-mit-community/99-consensual-sexual-or#:~:text=Sexual%20and%20romantic%20relationships%20are,with%20undergraduates%20are%20always%20prohibited.

Sexual and romantic relationships are prohibited where the faculty member or other academic instructional staff member has or might reasonably be expected to have “academic authority” (defined above) over that graduate student or other learner. (Such relationships with undergraduates are always prohibited. See Section 9.9.3.1.)