Most people I know have a drawer full of working phones they don't like anymore. I really don't think the majority of people are looking for repairability as much as you think.
Hmm, nice but that's really a very different kind of device. I don't want anything so bulky - this is like double the thickness of the S9. I'm not using any case, no need - the Gorilla glass is more than enough to survive repeated falls on the road when I was getting out of a car.
Why do you limit this to Apple? Samsung and Sony will take extra care to apply the glue properly when fixing your phone, and they will replace your device if their glue fails to do its job.
I use my Samsung S9 without any case since the Gorilla glass is more than sufficient for me. It had its fair share of falls on the road when I was getting out of a car - still looks almost new. It even slid down from the top of a roof into the gutter when I was fixing an antenna there - few minor scratches on the back, nothing more.
Could you give some examples of these things, please? All waterproof hardware I have ever owned (phones, cameras, flashlights, watches, etc) doesn't have user-replaceable batteries. In all cases the batteries need to be replaced by a specialized shop and the waterproofness is tested afterwards in a special machine - and it's not always a success and the job needs to be redone.
Note that there is a significant difference between "water resistance" and "waterproofness".
I don't care about Apple. I use phones that are rated waterproof - because I am going to swim with it.
I even successfully applied warranty few times (Sony and Samsung) when a phone got fucked this way, since the glue wasn't applied properly. New phone for me, yay.
How do you maintain waterproofness without glue? Not just water resistance - I mean actually having the device survive having it in pocket and swimming with it.
Human babies are born significantly earlier in their development due to birth canal width VS head size. Without this limitation, they'd be born after 2 years or even more.