Right now, in this very moment, somewhere in this world a careless driver puts other people in danger.
With almost a hundred years of experience in auto motor sport, car crashes are still making victims every day on this earth. John Doe or Jules Bianchi, the power of the engine still kills people.
A hundred years of legislation and efforts made to create a safer infrastracture for motorized vehicles. Still, people are killed, mainly because kamikaze drivers, just like this pilot.
Others lose their live due to serious technical problems of their automobile, resulting in an uncontrolled "fly away" from the road.
Sooner or later one pilot will screw big time. Beyond our imagination. The aircrafts are getting smarter, but the rapid growth of this industry and the increased market competition will create easy access to iresponsible people.
Even in this moment, which is still an early phase of UAV industry, it's so easy to get up in the air, no matter who you are.
No prior exam or license required, at least in most of the countries, no insurance, no medical exams etc.
For the moment somehow the entire safety program of UAV industry relies mainly on the common sense of the pilot.
Sorry, but that simply is not good enough.
Some people have anything else except that.
Hopefully sooner or later the amazing privilege to enjoy an aerial platform will be offered mainly to those who deserve it and will do some efforts to earn it.
Flight schools are mandatory, and a license should be required for every pilot, even those flying for recreational purposes, not only commercial activities.