Cypherock Cover, the scheme that makes the simple stuff unfeasibly large and bulky.
Speaking of inheritance itself. Split SEED phrase into SSS blobs using 2 of 3 scheme. Encrypt each blob with your hardware based pgp key (How the setup such keys is described
here). Give one of the encrypted blobs and HW security key to your nominee. Include one of the remaining encrypted blobs into you legal will with assigned nominee as the lawful beneficiary under will. Instruct lawyer to hand over this will to nominee after your passing.As simple as that. A simple and reliable inheritance plan that doesn't require Cypherock Cover.
You don't know how difficult that is for 99% of the people to do what you just described. So many ways you can screw things up and prevent the assets from being inheritable. Not to forget how expensive it can be to update this setup over time relative to our solution.