I'm sure this has been discussed before, if this is a repeat of an old thread I apologize, maybe someone can link to the old thread...
If I want to use a deterministic seed for my wallet (like electrum or brain wallet ) what are the most practical ways to backup the seed in case I forget it? Write it on a paper and bury it in the backyard? Put it in a safety deposit box? Also how do I give it to my family in case I die (but without them stealing it while I'm alive )
if you dont trust your family while your alive, and dont think they deserve the funds. then dont give it to them.. even after death.
as for safe storage. dont just have one backup.
EG if you put it deep in your backyard. after a year you would forget the exact spot you left it. then the year after. you move. and the new home owners decide to build a pool in the garden.. and what should they find.....
now if that happened and the backyard was the only copy. you lost out. but having a second copy in a bank, you can easily move the funds out of the address when you realise you forgot where you buried it. emptying out the privkey and making that buried key useless/empty.
i suggest paper, etching it into a dogtag necklace, bank safety deposit box, as many ways to back up as possible. and if one is forgotten or compromised. you can then use the other copy to move it to a fresh address.
never keep one copy, even if its in a fire/theft proof black box buried under a landmark that you will never forget.
although i joke about the family trust part. one option is that if your family know and have access to only half the privkey and the other half is wrote in your Will. then your lawyer can't steal it alone. nor your family alone.