Since bikes/scooters are much faster than pedestrians, it causes problems like this when they use pedestrian infra. For an example, I was driving up to a yield-to-peds xwalk a while ago, and on the sidewalk there was a scooter going at full clip. I slowed down because I had a hunch he would do this, but he took a hard 90 deg turn at the xwalk and went straight through at speed. If I hadn't done that, I might have run him over. A pedestrian could never have done that.

Something similar to this dynamic happens anywhere you would "look both ways" as a driver but don't have far enough visibility to extrapolate a safe window of passage relative to the speed of oncoming traffic. It can happen when parked cars block your view of oncoming traffic, or when parked cars block view of the bike lane, or when parked cars, trees, hedges, fences etc block view of the sidewalk that a non-pedestrian is using.