A UAV operator cert makes sense, esp. if it is for everyone and not just commercial types. Although I will say, that enhanced requirements for commercial operators (whether they be training or equipment-related) make sense only if they are given enhanced "privileges" like beyond LOS, night or over people. But a full pilot's license is simply asking too much: too much time and money that will never be utilized. The ground school classes that pertain to drones (specifically those relating to airspace and possibly comms) are one thing, but the vast majority of a PPL is absolutely wasted money and irrelevant. There are numerous possibilities to make things safer (so that we can cut the numbers of UAV-related deaths down from 0 to 0) like requiring comms IVO a controlled airfield, etc. but paying gas and rent to maintain currency in a far more dangerous manned aircraft on top of the flight training is pretty ludicrous and while some may have a philosophical reason for wishing everyone gets a PPL, it is not a practical one and is unduly burdensome. After all, the rise of drones in the commercial sphere is and will be because they are cheaper and patently safer than manned aircraft (i.e. that is the whole point) and to chain them to outdated and overpriced requirements defeats the entire enterprise. The evolution of guidelines about LOS, night ops and autonomous flight will further challenge that paradigm, and evolve they must in the commercial realm.