I've seen a few videos of youtubers (Colin Furze, the Hacksmith) taking classes to learn to fly it; it looks like it doesn't take more than a few days to learn,

I've seen a few videos of youtubers (Colin Furze, the Hacksmith) taking classes to learn to fly it; it looks like it doesn't take more than a few days to learn, but a massive amount of physical strength to fly.