Boku no Tsuma wa Kanjou ga Nai

[SasazukaIchimashi]

Honestly, the robot company taking possession and erasing the memories of the robots pretty much only makes sense if they're short term rentals because, if someone buys a robot and lives for decades, wouldn't the robot be an obsolete museum piece by the time the owner dies and the robot goes back to the company for reprogramming?

I presume any robot who is bought with the specific intent of becoming a "treasured family member" will just stay with other family members even if the original owner dies. I know Erisu was built by a different, as of now unspecified, robotics company anyway so it could be that her manufacturer doesn't even have the same reclamation-upon-death policy as Ichijou Robotics, the manufacturer of the Minas.