When we carefully have a thought on these unprepared but inevitable events that are beyond our control it becomes a necessity to grant knowledge to a single family member, someone we can trust about certain important security details to our asset. It's just a risk we have to unavoidably take in avoidance of the risk of losing our assets forever in the case of sudden death or anything as close to death.
You know there is a difference between granting knowledge and being able to access your wallet. I don't see risk in giving my security prompts to a family member because it won't just be anyone, it has to be someone to trust, trust is to an extent but regardless there should someone who knows a lot about you and giving those Bitcoin security prompt isn't going to hurt. I prefer planning my will when my portfolio is holding a significant amount.