Sometimes you want an expert.
To wire a house for electricity.
To fix your car.
To be your therapist therapist.
To make you sushi.
But when you want to learn something, you want a teacher. And experts can be the worst teachers.
I remember in high school wanting to learn how to hockey stop on ice skates. My friend Jess had been skating for basically her whole life and we were on her pond in her back yard (#Vermont). She kept doing a hockey stop and saying, "I dunno you just... do it. I dunno, it's just like this I guess." She was an incredible skater. And had absolutely no idea how to teach it.
Expert does not equal teacher.