We have them in Canada too but it’s always on step ladders only, the freestanding A frame ladders, not the ones that lean against a wall. Those are safe and required to use the whole ladder to get on top of whatever you’re using the ladder against. It’s the freestanding ones like this that have the warning because if you climbed right on top it’d be super unstable since they’re freestanding. You can see the warning on the send to top step.