Held by my sons, private keys scured with third party always.
Yes, we should do that, because if we have a high amount of bitcoin and we die,all this amount will be lost, because no one can recover it, It's hard to crack a wallet, so the best thing is to held your private keys to someone in your family, maybe your son or wife.
Yes may be right bitcoin is a digital currency system and it's have a price is high in future wallet in case of any emergency in future you may die at that time all your wallet will be crack so better you have some key to access your wallet creat and given to someone in your family are your close friends for continued your wallet safely.