That is really stupid! What I would have done was to raise all the outside ground levels by the windows so that people wouldn't have far enough to fall anymore and could not get killed that way. Then the windows could still be opened to provide ventilation.

Another thing that could be done would be to permanently mount safety nets below all windows above the first floor to catch jumpers. This should probably be done on every highrise building in the country. Think of the lives that would be saved.