That and cyclists/pedestrians can be kind of anywhere at any time. Again not a quite the same in America.
We'll see I guess.
They're just really cautious and do need an extra 10s to think sometimes, and there's a lot of driving scenarios that don't allow that much time to decide to go or not. The biggest culprit seems to be unprotected intersections with the potential for human/bike crossing, which includes driveways which they insist on using for dropoffs (even when they're obviously not public driveways), which they then take a very long time to leave.