A bitcoiner is enjoying an iced tea on a sunny afternoon on the deck when his wife sits down beside him.
"Honey I've been thinking" "Oh, what about?" "Well if anything should happen to you I have no idea how to get your coins." "Not a problem I'll leave you my private key" "What's that?" "It's how you access my bitcoin" "And how many do you have?" "A lot" "How much is that worth?" "Honestly it depends, today many thousands but it could go to millions or zero" "Oh honey! Is there any way to sell them?" "Sure, you just have to find a buyer" "Is that hard?" "Not as hard as earning it" "..." "I mean, most exchanges are down or hacked, and the ones buying on the street are often scammers and thieves" "So what do I do?" "Well, just wait for the price to go up and pray that you don't forget the key" "And what if I forget it?" "Well then you've lost everything" "Oh no!" "And is there any way to recover it?" "No, none."
That's the thing about Bitcoin, it's very secure but also very cruel.