It’s because it counts as an aircraft. Getting licenced to use your drone for anything more than “wooo, flyin mah drone” covers a lot of the same stuff a private pilot would know like reading the maps, airport landing procedure, and airspace. They treat it like an actual airplane. And you can’t just start blasting at airplanes because they flew over your house. If it’s doing more than just flying over it has to be addressed legally.
My HP laserjet 1320n is over 20 years old. Every 6-8 months I have something to print and it does it like a champ. I can even print to it from my phone. Idk the last time I put toner on it.