I have been reading a lot of post and replies where people debates on the safest way to store up Bitcoin seed phrase, some folks said writing it on paper and storing the paper in a secret places is the safest means there by preventing Cyber attacks while other folks said storing the seed phrase in a special hard ware device is the best way.
What people said about the best way to store private wallet information is just an opinion, and it is not everything said is always correct so you need to do your own research.
Having said that, the writing of wallet seeds on paper was advised to practise airgap storage, and it is not considered the safest means for storing a seed phrase. However, one of the safest means is still the use of an austenitic stainless steel with grade 316L, which has the potential to resist different stress or disasters.
Nevertheless, you'll still need a safe location to keep the metal plate.
1. Is it good to give our seed phrase or wallet password to our next of kin while we are alive since death is inevitable?
Do this if you're looking for a quick die.
Why not get a bank safe deposit box?
2. If the answer to the first question is Yes, what then happens to us if the next of kin defraud us of our hard earn wealth while we're alive?
You should have will happen which is bankruptcy.