The problem of seeds is obviously crucial. Can we imagine being the one and only person who knows what to do with these 12/24 words? How to keep them safe, but also how to pass them on to heirs or friends (so that they know what to do with them?). Informing others while preserving your own security can be a real challenge in some countries.
And then there's betrayal, divorce etc...
What are the solutions?
The only one who I can entrust my wallet's seed phrase to is either my wife, or daughter or son, no body else, but speaking of my wife, before I let her in on such vital information, we must have been married for several years and I am sure they we both have gotten to that level where we can never divorce or seperate no matter what come may.
And if I will be revealing my seed to any of my child, he or she must have gotten to a certain age and must be living a life deserving of enjoying the fruit of what I have laboured tirelessly over the years to acquire, I did donate my crypto to charity than have a useless son or daughter inherit it from me.