I make sure that my Bitcoin can be inherited in case I died because of health, accident, etc., by writing them on a notebook and put it somewhere in my room. I would leave a letter letting them know that here are my keys to the kingdom that are composed of usernames, passwords, emails, public and private keys, mnemonic phrases and other confidential stuff as inheritance.
like a puzzle, right? unfortunately it will be difficult to happen if our family does not know what crypto is, so there needs to be education first.
however, as far as I know, when someone dies, and doesn't leave a private key for their loved ones, it gets trapped in their wallet. because this system is not made to send assets automatically when we die. however, what is yours will remain as it is until someone manages to find your private keys, and remove your assets.