I am from Brazil, we have stores and street vendors that sell pirated stuff, frequently more expensive than the original... people buy it due to better service and ease of payment. (example: pirated freeware, that was fan translated, while the original is only in a language noone knows here.)

That's not the only reason.

If I'm given the choice between a free proprietary, inflexible system like Apple Music, and paid DRM-free content that I own and can keep as long as I want (basically, paid pirated content), I'll choose the latter.

> It's free.

Even that, by itself, is not one reason. Look at https://www.oxforddictionaries.com/definition/english/free. Meanings [1-4,6] are very common reasons to pirate stuff. [5] is kinda minor, depending on how much money you have.