What obstacles did john coltrane face?

John Coltrane faced multiple obstacles throughout his career, including racial discrimination and limited opportunities for African American musicians in the jazz scene. He struggled with personal issues, including addiction, which affected his health and relationships. Additionally, Coltrane often faced criticism for his experimental style and willingness to push musical boundaries, which challenged conventional jazz norms of the time. Despite these challenges, he persevered and became a pivotal figure in the evolution of jazz.