If you want to take care of your crypto assets not being lost in case of your passing or otherwise becoming unable to change the ownership, you will need to create a safe scenario with your guardians.
Your next of kin should have access or be in contact with (in case of friends/family) half or more of your guardians.
For example, with 4 guardians: 2 could be friends/family that would recover your assets according to your will.