One outcome they’re very unhappy about is inability to access music during recess/between lessons.
I’ve been looking for a solution for it but it’s either all dumb (I.e. offline only with MP3 support) which makes it complex to buy and convert music to or the players are audiophile grade and cost 400€+
Are there any solutions that would be convenient (i.e. smart enough to work with any streaming), won’t resemble smartphone and cost a kidney?
If a device has the brains to work with Spotify it can just as easily work with Facebook but it will not benefit from the mass market, carrier subsidization, and general perception that a phone is “essential”. I can just picture this world where you are carrying 5 smartphones on your person that are all specialized to do this one thing or that one thing.
Some clever kid could take one of those to school, get it setup on the wifi just outside school, then bring it in and say it's not a phone.
Streaming music if a "smart feature". A music player doing that would be "smart" by definition.
Even the audiophile-grade stuff you mention usually is some kind of android device with some "better" audio stuff. Essentially a smartphone without a sim slot and with some audio gears instead.