Storing your wallet seeds on stainless steel plates in a fireproof safe is a good first step to protecting your bitcoin.

I think it is also important for the people around me to learn and use PGP to the point it is second nature.

Leaving instructions for loved ones to access sensitive information should not be easily accessible to someone poking around where they should not be. Those instructions should be encrypted and signed!

PGP is an important piece to a good OPSEC.