Not to get too deep into the weeds, but from reading Stoner's bio, one gets a picture of a very very solitary kid, whose obsessive practicing and anxiety over the phenomenal amount of sacrifice on the part of his parents really fueled his competitive nature, would just naturally, on some level, make him subconsciously angry and resentful at the pressure laid on him to repay his family for all their years of forgoing domestic stability and so many basic comforts and ease of life so that he could fulfill his dream. No kid that young wants to be responsible for his parent's well-being, financial or otherwise. Kids want to feel parents are there to protect them and have it all under control. Ozzies have that cultural can-do, no worries DNA - but underneath it all, they're just human beings like everywhere else. Stoner's life on the road from such a young age, never really settled down in any one place for very long, can't have given him much in the way of social skills, and even the most "normal" well-adjusted person can easily get bent out-of-shape by constant media attention and being regularly tasked by a PR machine with shilling as a brand-representitive under bright lights for some giant corporate entity. Stoner was a low-key Gary Cooper type, the exact opposite of ultra-narcissist, approval junkie Rossi, who only felt fully alive when there was a camera and mic in his face.