I'm sometimes surprised to see folk (of all ages) out in icy/snowy weather with their year round footwear on. Maybe not as much of an issue when you're younger (let's slide ... yipee!!!) but when you're older it's a different story.
It's a stout pair of walking boots for me. Thicker sole, so lower heat loss and much better grip on the icy bits. I've never been confident sliding on ice, even when I was young - my legs just lock up. I had one fall, landing on concrete, on my coccyx, and it is incredibly painful.
I keep promising myself a pair of those cleat things, which slip onto your footwear, supposed to dig into the ice and snow to provide grip.