The term RPAS was invented by the two winged master race of Her majesty's RAF for two reasons:
1. In the face of many comments from Harry Public and the press, to emphasise that there is a qualified human being operating the vehicle, especially when decisions are made to drop a weapon or not.
2. To ensure that the said two winged master race is still relevant in the 21st century in the face of more automation. I mean you cannot have Scopies or Air traffikers or even worse simple sailors or god forbid, artillery types operating these things can you? Can you? I mean for a start, they don't have natty green overalls to wear do they?