The Beirut explosion should be a wake-up call to all of us, to store your Paper wallets and cold wallets in more than one geographical location. A national disaster or a accident like this might wipe out your house and if you used that as your primary hiding place, you would lose more than your house.
Storing your crypto in multiple locations increases the risk of someone else gaining access to it. From what I've seen, the number of people who lost their crypto to theft is many times larger than the people who lost their crypto to large disasters.This is definitely one of the disadvantages of crypto, that you truly own your own money.
It's always a trade off between the risk of losing access yourself, and someone else gaining access. I've never found a solution that fully satisfies me.Not if you know what you are doing.
I store my "Private Keys" in a way that only myself would reconstruct it.. if needed. I left instructions and also directions to the locations of my stash for the people I leave behind. (The people I trusted with handing over the instructions, cannot do anything with it, because only my love ones knows how to decipher it from clues I left behind.) Even someone finding it, will not know how to use it... because it is not recognizable as Private keys.
There are ways to implement this that are safe and secure and it makes it possible to store it in several different locations without uninformed people capable of knowing what it is.