I used to work on a construction site and everyone wore steel toed boots, anyway one time it was very cold and some guy decided to lick the toe of his boot to see if it would stick to his tongue. It did.
They were always a pain for being cold I remember. In a hot country they'd probably burn your toes. There's a reason most people don't wear metal shoes.
This was back in the '90s so I don't really remember the details and I wasn't actually there to witness it, just the aftermath. I assume the boot leather just wore down.
I'm guessing Canada. We get similar temp range in north central and north eastern US.
I'm in the Rocky Mountains, and our range is -15C to 40C (5F to 105F), and I wear my steel toe boots to shovel snow in the winter and garden in the summer. Oh, and I wear the same wool socks in both seasons, which keep my feet warm in the winter and dry in the summer.