>2. Lobby to get the flight training school to practice over unpopulated areas.
This is fairly typical — even in urban centers there's typically one or more "training areas" for students to practice maneuvers. e.g. in New York: https://i.imgur.com/Djum5pX.png
This is fairly typical — even in urban centers there's typically one or more "training areas" for students to practice maneuvers. e.g. in New York: https://i.imgur.com/Djum5pX.png