How do you guys feel about putting the seed phrase on banks safety deposti box inside of their vault? Bank would have one key and I would have second and both would be needed to open the box. In case of death the box would be automatically transferred for my kid so it would be useful in a way that seed does not get lost when I die.
It's better to have your own vault than to put it on the banks. It's just going to be the same thing that you'll do with the banks and you just have to keep it in a place into your house where no one can easily see it. You just have to place all of the necessary details and tell it to your kids while they're children or at least leave some instructions to your will. It is just in case that you left this world unexpectedly.