Good students are hard to find in the realm of adult golfers. It's very hard for instructors to live in the age of YouTube also. We often find examples here of adult golfers that took up the game 4 months ago, they've taken 3 lessons and they post here already questioning the teacher and asking for WRX advice.
There's no other way to progress in golf than taking lessons; but this is a statement often questioned online or on social media because the value of instant gratification in whatever aspect of life is extremely high these days. Or stories like Bubba Watson or any other PGA Tour golfer who states that they never took a formal lesson but there is no way to check the veracity of it are used to justify this peculiar digging out of the dirt attitude.
A good student first trusts their coach, and this is the foundation to learn and make progress. And then the student must be diligent to do their homework, they have to be persistent and accept the fact that hitting the ball during the early stages of change shouldn't be a priority.
On a final note, I've always noticed how quickly children pick up a good game. They are receptive and flexible but they also take the teacher's words without questioning them. They simply try to do what they are told.
Adult students are a bit of a mistery for me. It's not unusual that they jump from one teacher to another, they blame the previous teacher, they want to progress with lessons and hardly any practice and they are often lured into any rabbit hole nearby.