It could be because if the bitcoin owner dies and does not die something like the privacy key where he keeps the bitcoin i'm sure the bitcoin will be gone forever. So just in case it's better to keep it somewhere so that your immediate family will get an inheritance from bitcoin if you die.

if the owner of the account with the Private key passed away of course still can be tracked by finding the private key that owned by that person. The Wallet only can be open if there is a private key. As long as the private key is not found then the bitcoin balance will remain on the wallet and will not be able to move to the other wallet, so one can access to open the wallet is the private key.

Probably the best way to handle this issue if a person is really holding huge amount of bitcoin in his wallet is to consult it on a legal matter.  He or she could ask legal assistance to make will in testament.  If the person dies, there will be designated heirs for those bitcoins the person would left behind.

yes of course his or her bitcoin will last forever.but for me that is only a speculation,as of now we must be brave in our daily life if we have a 1 million bitcoin now we must talk to our sister or brother to be secret and we must tell them our account so that if something will happen to us then they should know what will be the next move.

More accurately, bitcoin is not lost forever, it just hibernates in the wallet of the dead forever, no one can use it as well as move that bitcoin unless they own a password or private key to access the wallet. In the past, situations where bitcoin owners died and bitcoin in their wallets froze, that is a story that often happens because they do not pay attention to the value and development of bitcoin, they just think bitcoin is a useless virtual asset but currently, this situation is very rare when people already know the value that bitcoin can achieve, they always store passwords and private keys for relatives, that is the plan for the worst case scenario

You are absolutely correct my friend.  Who else would have to inherit all your bitcoins or what so ever other than your family members who you trusted the most.  As for me, my wife and my son should know.

Obviously, Your wallet is protected by a single password if you have enough faith in someone you can share your password with him/her. By doing this your earning will not going to lost after you. Do this on your own risk

Hacker can get the bitcoins of the deal people but only sometimes, when people are dead the bitcoins is usually lost and there are already many bitcoin which is lost for ever and nobody ever gets them.

Thats an interesting point!

Bitcoin developer is not just one person. They have a group of people who have died when others die. Even if their leader dies, Bitcoin will not be lost forever. Their community will save it. In this way, after the age, the yug will continue in phases. Because they know the whole bitcoin database.