If you die when you hold bitcoin in your wallet and without sharing your privacy key to anyone it will be gone forever. Therefore you must prepare everything for the future.
That is even very normal in our daily life, if you will not share your information about your property no one can know about it and all your property will gone for ever, you need to share your information about your online wallet as well as your bank accounts if you want you family to know about your property and assets and after your death they can easy get all your property.