I've had hearing aids for eleven years. I didn't know I had hearing loss though I had struggled in noisy places to hear anyone talking to me. I'd gone to the audiologist to discuss my tinnitus, which is when I found out about the loss of my high frequencies. Fair to say, they're not perfect and they limit my ability to zone in on what I want to listen to and sideline the other stuff. I had to give up playing music in sessions because I lost the ability to latch on and focus on other musicians and often found myself all at sea. My hearing aids are free on the NHS, as are the batteries for them and replacements when things go wrong, as they do. You can elect to pay for hearing aids and that gives you choices. The received wisdom is that the free NHS aids are "last year's models" but they work a treat for me.