Great idea. The things available to give parents controlled access to music aren't great. Echo (Dot) + Kids+ seems to be the closest to meh on the speakers--the kids devices like Yoto are too limited (or require downloads) and the other voice speakers are worse than Echo/Alexa/Kids+. Which is mind-boggling because the Echo setup is wildly bad. I was thinking about how to lock an old iPad down to nothing but this app -- will need some time looking at parental controls again. Adding respect for Explicit tags might be a good feature if you don't have it. I have playlists that I'd love to share to them, but 5% of the songs need the radio edit or need to be elided.