I dont trust anybody so sadly if I die my bitcoins go too. Im only in my late 20s though & have nobody to leave my coins to.
I always tell to my parent that I have bitcoin and in my wallet and my parent also know my password and private key so if there is an emergency that they need a money they use my wallet to convert my bitcoin into fiat. But, I think once I die I will inherit all my bitcoin to my family.
Of course we should trust our own family, and for sure we are working hard to get the money simply because we love our family and we all want to provide good things for them. I also want to inherit all my money for them, they deserve it but since cryptomarket is still new there is no system like this. I have my black book, where I wrote everything so they can easily use my money to live and continue their life using my money.