"around the campfire" is "performance mode" or "or maybe relaxation mode". Teachers can teach only when the student wishes to learn. A good teacher knows this. When teachers try to force, the student often ignores.
It is as important to find a teacher that fits your learning style as it is to find a teacher that know what to teach.
This applies to music instruction, driving instruction, flying instruction, etc.
An example would be a teacher that is very good with teaching children to play, beginning with children's songs. This is fine for children. But, some adults find this insulting and would rather stop playing or practicing than learn and repeatedly play children's songs. Some teachers are unable to adapt to client's desires/needs, and have to be properly matched to the student.
Of course, the best teachers can adapt to nearly any student. But, it is not necessary to find the best teacher. It is most beneficial to find the best teacher for >you<.
You will advance much quicker with the right teacher and appropriate practice, at a rate faster than what you can achieve independently.
Being mostly self taught myself, this was a hard concept to realize. However, it did allow me to create my own style, which can be suppressed with formal instruction. I avoided it, because I saw so many people trained with high formal and technical skill, who could only play from a piece of sheet music. Originality and creative improv music was impossible for them. And, while they did play beautifully, there was a certain sterility in it that I found somewhat lacking.
Having said that. I learned a lot from instructional books; Mel Bay, Mickey Baker, in the late 60's, and, of course, every other guitar player I played/performed along.
Just to keep things in perspective. No one asks me anymore to perform publicly. But, my wife still likes how I play! And, I can entertain myself quite well!
Cheers,
