Just tacking on to your comment... The Jackson's were aggressively exploited by most of the key adults in their lives from a relatively young age. Michael was like 10 when the Jackson 5 had their first big hit single. Joe Jackson and Berry Gordy recognized they had a "cash cow" on their hands and resolved to squeeze it for every penny they could.

Dealing with a relentless work schedule where you're harshly punished for your mistakes and then having your life shoved under a microscope for the entire world to see would break a lot of adults. It's no wonder Michael went off the rails.