Not the OP but I use a bag from Rhinowalk (I got mine from amazon for 85 Canadian dollars) that transforms from a pannier to a backpack and I love it! It’s not the best backpack in the sense that only the top opens so it’s harder to organize but I love it overall.
I feel awful for the woman hit and I believe that scooters shouldn’t be on the sidewalk. But it sounds like the CNIB still just wants them banned. 4 people are hit by a car every day in Toronto. It feels like complaining about mosquitoes while a bear is mauling you. Yes it sucks, but we should focus on getting cars off the road through transit and personal means of transportation like bikes and scooters with bike lanes.