Send these mails to a second group in case one of the original pair loses their email
I liked the idea of 2 groups of people.
Someone who wants to save BTC can send their BTC to the bar and stick it in their safe.
The whole point of the bar is that it looks valuable. Someone's heirs will treat it as such, and will probably store it or look for a way to sell it to somebody, exactly as if it were gold.
I'm trying to eliminate the need for a vault (for several reasons). And I'd like to release access to the Bitcoins
after death/amnesia/prison. Not before.
On the other hand, a flash drive in an envelope with a bunch of instructions about "TrueCrypt" and "PGP" will, in my opinion, probably get disregarded as not worth the trouble by most non-technical people (your mileage may vary - everyone's family is different).
If Bitcoins are valuable, it's worth to follow the instructions.