Perhaps the best outcome of my son Lewis’s stubborn, self-directed learning was that it defended his learning style. I’d try and try to influence his cello practicing, and utterly fail. His lessons were the same until I began to despair of ever influencing him.
Then I discovered that his procedures really suited him best. He was a daydreamer and I couldn’t reconcile this with my very focused style until I actually saw how much better he played when he could think in his own way.
Thus, in stubbornly holding to his own methods, he eventually overcame my resistance.