2021 Subaru Forester Backup System Problems

The RCTA system operates very poorly. When backing up and we see a car in the rear camera screen approaching from the back side of our car, we cannot hear or see any allert. My wife and I are both seniors in our seventies and I suffer from normal age-related hearing loss....my wife not so much. Her hearing is quite normal. But we cannot hear the alert alarm. Also, the visual alert is located in a place where you do not look when you are backing up. It wasn't until I owned the car for four months that I discovered that there is a visual RCTA alert in the side view mirrors (of all places)....an area one does not look at while backing up. With a car with a rear camera, your eyes are usually glued to the camera display screen when backing up; after all, it is a safety device. We have nearly had a collision a half dozen times already. I contacted Subaru about this issue, and they told me that there is nothing that they can do and that in their words "As you can imagine, finding the right balance for all of our owners is a difficult job." this sound alert should be adjustable...it is not. And the visual alert should be in a place where your eyes are looking when backing up. Right now, the Subaru RCTA is worthless to us.