I've used in-ears since they came on the market what 30 years ago and I've never sterilised them :) I just rub the wax off. Also dropped them on the street and

I've used in-ears since they came on the market what 30 years ago and I've never sterilised them :) I just rub the wax off. Also dropped them on the street and reinserted them many times. I do have some hearing loss but it was from being a live audio technician for a while when I was young. These days I don't go partying without my loops (which are also in-ear but for protection) And my ears are pretty clean of wax, I have one of those Chinese camera sticks so I can check them myself. Sometimes I scrape some wax out but it's usually not needed. Anyway n=1 but not everyone is sensitive there.