Yes, and I should only allow certified mechanics to work on my vehicle — even though they screw it up every time, and I should only allow certified piano tuners to tune my piano even though it always goes out of tune the next day, etc. etc.
If it will ease your mind at all, her current hearing aid was initially programmed by an audiologist and I have just made minor tweaks since then. The same will happen with her new one as the insurance will pay for that.
Just one thing he screwed up out of several at the beginning: he set sound recover the same for all her programs, never said anything about it, or asked how it sounded to her. It was only when I started programming myself that I learned about it and realized that by making it slightly stronger for speech she could hear better. And I also discovered that he had put it on the music setting, which it should never be used for. My wife was telling me the high notes of the piano sounded strange — and it took me a while to realize this was because sound recover was moving them down to a lower pitch that didn’t make sense in the music! The audiologist didn’t have a clue about that!
I also eventually discovered she heard music best while listening on tele-coil with her head up close to a speaker I went to a great deal of trouble to set up for. But I also discovered that over time that on tele-coil there was distortion. So I turned the volume of the tele-coil down several steps which, combined with turning the volume of the speaker higher, solved the problem.
Etc. etc. etc.
Regarding cochlear implants, this is not music to me. Perhaps there will be improvements in the future.
I am a classical pianist and I’ve uploaded my renditions of the greatest works of Bach, Beethoven, and Schubert to YouTube, and I want her to be able to hear them as well as other great pieces of music.