and the law only requires that you scribble the ID somewhere on the craft

most bought drones also transmit it wirelessly too

many use direct WiFi connections

yes, the toy ones, once you get 10m away you aren’t controlling that drone anymore, let alone recieving pictures

which can be completely spoofed over 3G proxies

once you start introducing the internet the lag becomes unbearable, and also phone towers are aimed at the ground, not at the sky, so you’d get shit reception anyways