I would like to see stats on how many people fall onto the tracks while the train is in the station. Because if that statistic is higher than people falling onto the tracks when there is no train in the station then those gates make sense. These gates are static and only prevent people from getting too close to the train in-between the doors. If we are going to install this system in 4 stations with the same money you are better off installing doors that open when the train is in the station and stay closed when there is no train occupying the platform.
I'm all for safety but it has to make sense.