A likely reason is that not only will plug and brick sizes vary by region, but if storage was internal, people would just start throwing their shit inside and closing it.
This would scratch the screen to shit, if not outright break it. Additionally, people’s wires and cloths and earbuds could crush the analog sticks or other inputs. Which, analog sticks famously hate.
Shoving the charger in the little sack and having it protrude covered by elastic is an elegant and slim solution to all of this.
I don’t think you people understand how much of the human population are mouthbreathing morons. They treat their expensive stuff like shit and wonder why it’s broken after two months.
I’m not some case freak either, I use my SD with zero third party accessories and my phone is nude as well. It’s fine because I don’t treat my stuff like shit.
Yeaah all those $80,000 F150s and Silverados you see on the road?
Bubbles gonna pop real soon. Those are all on 10 year loans…