It's not mandatory though - students pay $93.50 a month - this is 6 times higher than what some of the U-Pass schemes cost. The idea with a mandatory pass, it that it requires all students to pay for it, whether they use it or not. A good deal perhaps at small-city suburban universities, where the majority simply walk to school, so the mandatory pass can be offered at a fraction of the regular cost..Wrong... at least for the TTC
Post secondary students get a $22 discount on their monthly pass
One example is University of Waterloo's U-pass which costs only about $15 a month and is included with tuition - less than $13 a month as it's tax deductible as a transit pass. Even the occasional rider only has to use it 5 times a month to pay off. The fare is a bargain, and you can get a majority of students to vote to implement a mandatory pass.
In cities like Toronto, TTC has looked as such schemes, but the transit ridership of the large universities is much higher, making the proposed cost much higher, and I believed when this has gone to referendum it's lost every time.