This is going to be a huge issue. Now, with banks, most everything is recorded and can be easily located and processed in probate. There are going to be lots of people with Bitcoin that die and that coin will never be recovered. Especially younger people without estate plans who die prematurely.
therefore we need to back up all wallet data and exchange accounts that we use for trading.
I mean, giving access to people closest to us, such as wives or children, who we can tell about the system and how to manage the assets we store. procedurally, when you still have email access and security, you can still recover it.
but if what happens is when the wallet that we use to store BTC no one knows about it, of course, it will be very difficult. no one will certainly be able to access our BTC.