It’s surprisingly deep for something that looks so simple. You can start with almost nothing: a small axe to split the wood and a knife to shape it. That’s enough to make your first spoon. From there, it can become as technical or as artistic as you want, depending on how far you go.
There’s also a whole international community around it. People organize small gatherings and larger meetups where they carve together, share techniques, compare tools, and pass down very specific bits of knowledge. There is a whole series of videos about this on youtube on a channel named "zed outdoors". This hobby also had me look around for wood everywhere, when walking or driving and you can do it almost everywhere as long as you have a small knife with you.
Also, using a spoon you made yourself is genuinely satisfying in a way that’s hard to explain. It changes the relationship you have with a very ordinary object.
It looks like a quiet craft, but you can go very far with it.