Yes, it is problem of hearing.
There are many airports in the world, which have induction loop systems installed at desks, tellers, waiting ares, elevators, and gate areas. It is to help people hard of hearing navigate through the complex webs of the airports. All you have to do is to turn on t-coil program of your hearing aids. You can hear the public announcements clearly.
Unfortunately, that is not the case in the USA, or in Canada.
This what happened to me because I cannot hear public announcement at a airport,