You must winter in the Southern Hemisphere, lucky you. Here in Blighty (Leeds) the last 4 winters have proven the need for winter tyres. I can think of at least a dozen occasions in the last few years when I simply wouldn't have gotten home if I didn't have winter tyres.
I live in Burnley (top of the Championship, got a cricked neck yet looking up?). Been driving for 25 years, never once had an issue where I thought "I need winter tyres".
But then I know how to drive.