I'm hoping the Daily Mix playlists can be "Followed" in the same way the Discover Weekly playlist can be.
In addition to the obvious benefit of allowing one's friends to "Follow" these playlists, it would also provide a way for these playlists to be played on Sonos using the Sonos app (not Spotify Connect).
Currently it is not possible to play the Daily Mix playlists using the Sonos Controller app and this would provide that functionality, same as it has for Discover Weekly, Release Radar, and any other playlist I "Follow".
Updated on 2019-10-31
This is now possible, so we'll set it to Implemented.