the assertion from grandparent comment was that nobody needed it. parent asserts that yes, they do.

it’s nice that you don’t need it, but lots of people do. It’s a pretty basic durability/longevity thing.

don’t worry you can always move the goalposts back to “but you can waterproof a phone with a removable battery”, that’s a much more defensible bailey. “Literally nobody uses waterproofing” just was never a strong argument.