This sounds like a great way to lose data when the machine dies unexpectedly.

Linux should replicate Microsoft's feature where they back up your "full disk encryption" keys to your cloud account, completely unencrypted, and share them with the cops.

You can print recovery codes. Just chuck them in your safe.

Cryptography is only safe against someone who doesn't come and beat the password out of you if they want it. In my case, only my laptop is encrypted so if I lose it when I'm out it's useless.