I have often wished I could pop onto the yoto player to say a quiet "good night" as I turn off all my boys' players at bedtime. There have been so many nights where it would have been helpful to be able to say something as I turned off stories from my phone app.
Also suggested by Coral Boar:
Add a feature where I as the parent can press and hold button on my phone within the app to make an announcement to my kids in real time ie, clean up time, time for dinner, 5 minute warning for bedtime.