Local Files Playlist missing

[flexnet]

With Spotify Premium, on Desktop (Windows) i have a playlist called "local files" - in my iOS App i don't. Why do i have to create a playlist on my computer, add the local songs to it and than make it available offline so i can sync it on my phone?

It would be way easier to just have the same playlists/folders/whatever you call it on your phone as on your other devices.