Years ago, (in the UK) I cannot remember when,  I am so old, now, university student accommodation was segregated, male and female. Woe Betide the guy caught in female quarters after a certain time.
Now that student accommodation is 'integrated' the Students' Union is issuing guidelines as to what constitutes rape on account of the number of women who are alleging that they have been raped. 
Were student accommodation to return to be segregated then obviously the opportunities for rape, etc would diminish considerably. 
PC of course will not allow that to happen.