Presently, the Toronto Transit Commission has all it can do to handle overstuffed subway trains, streetcars and buses. Imagine if the entire population could ride free-of-charge.MICHAEL COTEAU, who’s hoping to become leader of the Ontario Liberal Party, says “It’s taking an issue like climate change, and looking for opportunities to improve transit.” This may very well be, but who’s going to pay for it? No details are forthcoming.TORONTO Transit is expected to collect about $1.3-billion in fares this year. The money is used to operate Canada’s largest transit system. If that is tossed aside, what’s going to replace it?Children under 13 already ride free on both the TTC and the GO suburban transit system.And seniors do get a deal with Presto cards. Shelagh Pizey-Allen, executive director of TTCriders, a non-profit advocacy group, said she supports lower fares and believes transit should be free for lower-income residents. But “people who can afford a car won’t ditch it if their bus is infrequent and unreliable.” (or packed to the rafters). “You don’t have to change overnight,” says MPP Michael Coteau.