Count me as one who is strongly against secondary suites.
Having just moved to Kamloops from Victoria, I have seen streets clogged with parked cars to accommodate extra residents.
In the winter, our street was pretty much a lane-and-a-half on a good day. I can’t imagine what it would be like with less plowing area.
In addition, rules generally state you must have a parking spot for your tenant. That just means the owner parks on the street to get around the rule. It remains an eyesore with cars.