iTunes Match and Family Sharing

i see that now Family Sharing is almost functional with shared data, photos, etc. I am trying to set it up on my wife’s devices and it won’t let me turn on iCloud Music Library. The option doesn’t exist. i have a subscription to iTunes Match and use iCloud Music Library. There are far fewer tracks listed in her music app (and seem to be random) and none of our playlists. I don’t want any Apple Music BS because I have the music I want in my library. Is Apple Music the only subscription they have allowed to be shared, though?