I would like to be positive about drones but I expect that there will be a lot of bad news before we get proper benefit from drone use. The main reason that I cannot be positive about drones is that every single amateur user, and some professional users, seems happy to break the rules. It's like, 'The CAA says I can only do this and this but look what I can do!' and off they go, higher and farther. So I can understand why so many helicopter pilots think of drones in terms of "Look, someone has invented something else that can kill me."
There are also many highly responsible commercial drone pilots out there who have the discipline that one expects from a professional pilot and who work with the regulator to advance the craft. However, this is a sector where the idiot-to-professional ratio exceeds all previous records.