I'd encourage anyone down-voting this to suggest why the TTC Subway 'change collectors' who sell tokens to enter the subway (essentially their only function) - do not also sell 'presto cards'.

And why you have to line up, pay, enter the station, and buy 'presto card' passes ... from the newstand in most cases ? ...

It's utter dysfunction.

[1] http://getpres.to/en/gateway-newstands/