There was a time when a friend would have access to Play Music with his account created as living in PR, USA but I, with an account created as living in Puerto Rico (Country, because one tends to assume that if it's listed as a country, it won't be listed as a state) wouldn't. [For the record, i tried to change it from country to state, but it didn't work, but that's not part of this feedback.]
Though, they seem to have fixed it with Play Music, with Youtube Music, we have, once again, basically the same bleeping problem...
Guys, listen.. PR is a US territory, although not an official state, it has a US ZipCode and it's counted as part of the US by basically everyone [when they feel like it]...
Someone should make Google [and the world, but let's start with Google] understand that a US territory is counted as being in the US.. It's a really silly, borderline stupid, problem that should be fixed at the source...
Bottom line is: either be smart and accept it is a US territory for the sake of its people, or be as ignorant as the rest of the world and count it as a country outside of the states..

And here was my feedback.