[WorldMaker]

Right, but this isn't protected anywhere. It's a fragile practicality. If you inherit that shared password do you inherit the right to recover it if you lose it again? Movies Anywhere is locked to a certain number of devices, do you have the right to unlock/remove old devices of the original account holder?

At one point I debated trying to build a system to help escrow digital asset things like passwords in Trust for the purposes of wills/digital estate planning/inheritance, but quickly realized the first major flaw of that is that as soon as you try to systematize it you immediately get into a fight over how much it violates various terms of service agreements forbidding account and password sharing entirely.

[thaumasiotes]

You're right, but I would still bet that the sheer ease of working around the issue stunts the development of formal legal approaches to it.

Which isn't necessarily a bad thing. I'd rather have established practice dictate the law than the other way around.