They even know the mechanism: the slow imperceptible year by year withdrawal from rich communication patterns with our environment.
I found that it took me a little while not to feel "old" when I discovered that I needed hearing aids.
But my oh my what a difference.
It's difficult to describe to someone what it's like and how much less cognitive energy you have to put into even simple things like discussing lunch with your wife!
It's weirdly isolating not being able to communicate in certain meeting software or on some phones because a computer thinks I'm the machine.
I've had hearing aids for years. People don't notice unless you don't have much hair or you have to have the industrial strength ones.
I do not understand the stigma around these things.
The one time someone did say something slightly negative that included "oh it's that guy with the hearing aids" I came back with "yes, and thanks to them I can hear what you just said, the clue is in the name", which got a general laugh that helped a lot. But that was a one off, apart from people slightly staring sometimes when they notice them, no one seems bothered.