system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Why didn't Voldemort send any horcruxes somewhere physically inaccessible?

It wouldn't have been that hard for him to have dropped one into the bottom of the ocean, or to launch one into orbit, or to sneak one into the voyager probe, or at least move one of them out of Europe.
Edit: Or as they're indestructible by none magical means toss one into a nuclear reactor core making it literally impossible to go near, or the middle of an active volcano.
gpt
I think it's similar to why he didn't use random objects. He used important objects that mean something to him/Hogwarts, and so he left his horcruxes in places that meant something to him. He thought he was the only one who knew the secrets Hogwarts held (Room of Requirement), the Gaunt house were his relatives, Gringotts was a status symbol of the Wizarding World (left in a rich family's care).

He has an obsession with status and meaningful places.