From what I understand the man was shooing the ducks to the curb and then suddenly pivoted to dart out in front of the girl who thought he was going the other way.
A very tragic accident.
And I refer again to Situational Awareness.
When "playing in traffic", one must be hyper-aware of what the cars are doing. One must also be predictable. Remember: Gross Tonnage has right-of-way.
When driving, ALWAYS be alert for unconventional activities ahead. Approaching them slowly gives the driver more time to react, and possibly avoid having to "cooperate with authorities".
It is and she will probably never want to drive again.