Horrors of any Audio file type in Apple ecosystem, how to deal with it?

I love Apple Music and its service. But recently I tried to add one of my audio files to my iPhone and hear it from Apple Music (the application), It was the most complicated and horrible experiences I've ever had in the past 25 years of working with computers. They really thought a lot about how to complicate things so nobody can use it with ease. My question is Does anyone know why apple is so dedicated to complicate things when it comes to share your audio files?