Good news!  The public transit system in Montreal (STM) has recently changed its policy regarding who can get a student rate on their OPUS card:  Kids under 16 years no longer have to show proof of school attendance or have a permanent code!  They just need an ID with proof of age, and a parent's signature if they are under 14.

I read it here and went down to SPEQ Photo to confirm it.  And it's true!  Spread the word...