The only one who know my coins investments, wallets, private keys, is me. So the question is how to inherit this information to my family? to give them privilege to access it after I passed away 
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.If you have a wife then in trust her with your private keys tutor her how to use it and pray that she wont withdraw your coins even if you two has misunderstandings, or if you have no one to trust die together with your bitcoins