If a person steps off the curb in a sidewalk into the path of traffic they have to do so in a manner that the vehicle has time enough to stop. If they don’t the read the following
RCW 46.61.235 Crosswalks
(2) No pedestrian, bicycle, or personal delivery device shall suddenly leave a curb or other place of safety and walk, run, or otherwise move into the path of a vehicle which is so close that it is impossible for the driver to stop.
Nearly ran over a pedestrian who was crossing the street in a crosswalk at a stop sign in Seattle today.