> nor are LIDAR-equipped RC aircrafts/drones particularl

Here in Romania it can be quite illegal to LIDAR map the local terrain without an official approval, and I'm not quite sure if that approval is ever given to individual persons/groups of persons that do not have any official status. So, no, I cannot just go out and LIDAR map my surroundings, even though the technology is available, I'd risk going to prison.