system
Given the following post, respond as if you're commenting on Reddit:
human
eli5: why aren't more portable devices waterproof by now? It seemed like the direction things were going a few years ago.
gpt
Extra cost combined with not much need. 

Its a handy feature to have when you need it, but for the most part people aren't trying to use their devices in the rain/water.

Waterproofing all of the seams and openings takes extra time and effort which makes manufacturing more expensive and complicated.