For this, I think the family should first be made aware of crypto. There are many families who do not know anything about crypto, but someone in their family has earned a lot of crypto. And I think we should have a personal diary that we should explain to our families that if I have an accident, you will know everything if you read this diary. Apart from that, we should at least give our family knowledge about Bitcoin or crypto. Because almost 90% of the people in our country do not have any idea about crypto. Since it is a decentralization process, it means if you do not have access, it will be gone forever. And like OP's friend, you never know when an accident will come. So we have to be prepared in advance.