Once you lost your private keys, then everything could lead into losing your bitcoin. And when that happens, in my case, I think I would be very depressed and frustrated. So I have to buy again and hold, and just repeat the process, that's the only way so that frustration will be lessen in time.
I can go with this path too. If ever I lost my private keys and password to my BTC wallet, I can be frustrated, depressed, but will eventually manage to accept the losses and move on. Life is way more precious than any money, money lost can be earned but life lost means the end of everything.
Committing suicide, that's just an act of foolish and irresponsible individuals. We may lose our bitcoin, buy hey bitcoin is not a do or die. We can proceed to earning again with bitcoin, or shift into other investments that we think there is less risk and less stress if ever. But never reach to end your life, there's always a solution to every problem given in life.
Committing suicide indeed is a foolish act. Most people who do this are those detached to the world, they don't have anyone to share their burden with and no one who can advise them to do. The frustration that leads to depression is very dangerous. Without an established importance for life, people will have a big chance of taking it without a second hesitation.
I believe the story has nothing to do with Bitcoin but rather has something to do with the moral of a person.