You are right of course my Mum honestly wasn't sure she would survive the day as she went into cardiac arrest shortly after the ambulance arrived. But the point is she and other didn't think twice they assisted.
Found out today my Mum was one of the first on the scene having seen the whole thing from her car. Apparently the girl had a very large hood over her face, looked the wrong way down the road and just stepped out infront of a rapidly moving bus. My Mum rushed to the scene having over 30 years...