Do you really need 3 days at £200+ to learn to carve a spoon?
No, of course you don't
need a three day course to learn to carve a spoon.
I could understand if it was say building a chest of drawers, or making a guitar, but a wooden spoon?
Yes, a wooden spoon. I would imagine that three days wouldn't be nearly enough to learn the techniques required to make something as complex as a guitar or a chest of drawers.
I would put making a wooden spoon slightly above sharpening a pencil with a knife.
Then you've clearly never attempted to make a beautiful, hand-carved wooden spoon

The guy who's teaching the masterclass that I'm attending has been carving all his life and he says he's still learning. Everyone who's going knows how to carve a wooden spoon, but this is a course designed to help us become even better at what is a very subtle art.