Very good point!
Also, what do you do about all the drones already in circulation?
And how are "training courses" going to prevent people from being stupid or irresponsible?
You can't stop people from doing foolish or bad things. There is not a single rule or regulation that would prevent anybody from acquiring or flying a drone if they wanted to. There are dozens of ways to combat drone laws.
For example, until 2015, more drones were built as kits from individual parts then were purchased ready to fly. If the government forced companies like DJI and 3DR to share information, and people did not want their information shared, the market would simply move back to building drones from scratch using individual parts. If companies like DJI and 3DR lost to much business to kit drones, then they would simply respond to the market and start selling all the parts to their products individually (if they already don't), to meet the demand of the market.
Buying and selling used drones and drone parts on eBay, craigslist, swap meets, or drone shows, would be an expected response by the market. All those places make government tracking very difficult.
If somebody wants to fly where they shouldn't, the most unsophisticated way to do it without being caught is to simply mount the controller antennas in one location and run cables to another location were you actually are (maybe a few hundred feet away in some multi-floor building, or under ground some place, camouflaging the cables or making them look like something else would be an easy way to slow things down), then make RTH a mile or two away from were you actually are, perhaps someplace if you actually decided to collect the drone at a later time, where it would be waiting safely for you, and if you were trying to throw of the authorities, this would separate you from the drone.
Not to mention programming drones to fly their course without an actual operator. If a bad guy wants to do something bad like drop contraband into a prison without getting caught. All they have to do is program it into the drone, take it to a nearby location, time delay it by a day or two (enough time to be in another state at the time of delivery), encrypt the actual software and instruct it to securely erase itself, and then press go.
There is nothing sophisticated about any of these tactics. Imagine an engineer or software developer who could actually write code so a pilot could be in one city, and a drone in another city where the developer has hacked into some cell tower or public wifi at a university, and hijacks their wireless signals in order to fly the drone.
So you can't possibly tell me there a million and half ways for those intent on doing evil to manipulate and workaround any laws and regulations.
