I would say I have never thought about this till now.
But I have read about it, somewhat related to it.
Every year, a sizeable amount of bitcoins are lost due to sudden deaths of their owners, this was one of the lines I remember when I was trying to figure out what bitcoins were.
I will think about it now and will also keep a check on this post's replies.
Maybe someone will have the solution about this.
Thanks for bringing it up to everyone's attention.