I've never flown a drone before. How easy would it be for me to learn?
That said, there is always a skill ladder to climb if you want jaw-dropping professional footage, where understanding lighting, composition, editing, etc. benefit the quality of what you can make. The drone is pretty good at autonomously picking good shots, but there's also a lot of manual control possible, especially with the controller.
Compared to those, flying drones like those from DJI require almost no skill. These drones do some form of obstacle avoidance on their own. You basically have to tell them where to fly and they will go there. Some are smarter than others in how they execute the manoeuvres, but some common sense will get you a long way with those.