funny, this issue never arises when remote control helicopters and aircraft can do the exact same things.
Probably because such things are usually only flown at parks, sport grounds etc. under the model aircraft banner. UAVs are being operated in suburbia.
across the park from just 100 ft. when the drone returned from its short trip 500 mtrs down the road
Be aware that CASA have issues with UAVs flown beyond VLOS (visual line of sight) of the operator. Special conditions apply. The reason being if you can't see it, you can't be aware of what hazard it might present to someone or something.