It's all about how widespread they are. What was before a pretty limited hobby where most people would know about and be mindful of light aircraft (and sometime

It's all about how widespread they are. What was before a pretty limited hobby where most people would know about and be mindful of light aircraft (and sometimes share airstrips with them), might turn into a real problem when prices come down and anyone can operate them without much training, as modern drones can with gyro and GPS stabilization.