Re: What's the use case for DAB?
Errr. How about NOT being connected to the Internet. Perhaps you might like to try it for a while.
It is Broadcast which to me is far superior than streaming especially if all the people on the train/bus are listening to the same thing.
And you aren't tracked which for some of us counts for an awful lot.
And there is no subscription fees to pay (No TV license needed for Radio in the UK) which is an added bonus.