In fact, this question leads one to question family values. How many of our families know about our wallets? Maybe you have a small or very large amount of cryptocurrency. Actually, it doesn't matter the size of your money. Are you investing only for yourself? As in the title, death is a fact and will happen to all of us. Did we take the necessary precautions after we died? Will all our investments be destroyed without the knowledge of our loved ones? We have time to consider them in detail.
Its quite important to leave them something, and my wife has always known about my bitcoin investment. She may not care about what the price is exactly, because it is clear that it goes up and down and she doesn't check it as commonly as I do, so maybe she has no idea about it at exact rate, but she does know about it for a small margin of error, like 10% give or take most days.
That is why it is important to let your loved ones know about it, and that is something that you should at all times do, let them know. Doesn't mean you should go around telling every person that you have money, but it also doesn't mean that you should hide it even from your wife.