Hearing aids are at a frustrating crossroads at the moment, IMO. In my experience, a lot of the recent hearing aids don't seem to support induction loops. It often seems to be a choice between that or Bluetooth... and Auracast isn't ready yet. I've had Phonak bilateral hearing aids for 5 years, and Starkey unilateral for ~5 years before that. None of those have supported induction loops.
"Yes, we have T-coils, but the person responsible for it isn't here right now, and no one here knows how to use it."
So, still quite a few limited factors to their actual usefulness in society unfortunately.