If you are deaf, hearing aids are pointless. I am deaf in one ear and hoh in the other, I only wear one, when I get off work, I take them off to air out my ear after working and sweating all day, gives me time to relax from my hearing aid!
Hearing aids are not glasses.. you are so right, however, you don't have to wear hearing aids to function, that is why we have two pairs of eyes
P.S. hearing aids don't hear everything. I know from experience.
That goes for anything really including but not limited to glasses, contacts, and so on. I HATE when people just thinks when there something to "fix it" that is "100%" instead of weighing out everything. Plus who said being deaf (or anything else for that matter) is something that we need to "fix" anyways??