If something happens with me today or tomorrow, I have a several peoples whom can I trust. They know my passwords, where I keep it and how to access to my funds. Also they know how exchange it to fiat.
Sometimes I still think about actions like this, if we have given important data now to people we trust, can they provide guarantees for it? Then what do you mean by the person you trust is your family or your friends? I prefer to give it in the form of objects that can only be opened when I have died.
No one is going to give you a guarantee about saving your coins so dont give your information about your crypto to anyone. People now a day do not trustworthy so abstain sharing your KYC with anyone. Everyone is going to die one day so yeah its important to have someone who can take your coins after your death but better trust only your close ones.