I think anybody that is holding huge fund in crypto should have next of kin in place because death is inevitable. Therefore I don't see anything wrong in giving out private key to next of kin before death.
indeed we must have a partner to inherit crypto that we have so that if something happens to us like sickness or death so that there is a substitute for crypto that we can rely on when we hold the key to our wallet usually the one who deserves to hold is our close relative, who is still bloodied with us so they can trust it.