With so many fewer moving parts compared to an internal combustion engine, yes, EVs could be durable enough to be handed down from generation to generation. Just keep replacing the few moving parts that wear out. Worn interiors can be refreshed. Electronics are modules that can be replaced with updated versions.
What we have to look out for here though is this overall trend of 'rent everything own nothing', though. Car companies might try to make vehicles lease-only, so you have all the responsibilities of ownership but none of the benefits of ownership, and it's never paid off, you just pay forever.