You're spot on about field experience. Shadowing lets you see how cameras handle real, messy jobs that tutorials never cover. Plus, you learn the tricks plumbers use to interpret what they're seeing on screen.
Yeah, the "elbow-deep in literal nonsense" part is why shadowing wins. You learn to check the screen before pushing the camera further, because a tutorial won't show you that gut call. That instinct only comes from watching things go wrong in real time.
Seriously... those tutorials probably gloss over the "oh god, what is that" moment. Shadowing means you see the creative swearing that comes with a stuck camera. Nothing beats learning from someone who's been elbow-deep in literal nonsense.