Dipped my toes into the Sonos pool yesterday with a pair of Era 100 speakers.
They are used in a study and primarily to play our YouTube Music subscription(s) (we have a family plan).
Adding YT music subscription as a source was pretty straight forward, adding a child account wasn't quite so obvious but got there in the end.
Something I've noticed is that on both my daughters iPhone and my Samsung, in the Sonos app there is a drop-down option in YT music to choose which YT music account to use (hers or mine) however in the iPad app there is no such option (that I can find). Anyone have a similar setup and know if it's hiding somewhere on the iPad?