If your tokens are stored in your wallet, perhaps your closest person will not know your key. When a person dies, there is a high probability that the tokens in the wallet will disappear forever, which is equivalent to being destroyed， So that the price of the currency can be increased even higher, but if you tell the closest people the key, they may sell a large amount of bitcoin after you die, which violates the consensus and characteristics of long-term bitcoin holding.
it's true that if the key is not known by others and we die, all the tokens we save can be lost or like being burned, it would be nice if we gave the key to our own family so that the results we work can be enjoyed by them.