If there was a natural disaster and people cannot access their wallets because maybe there isn't any electricity or there is no internet in the area then all their coins will be held. Not much of an effect on the market. But once they can have access to it, it would make a difference because everyone will withdraw their investments.
Exactly! But we also have to understand that natural disasters sometimes can affect a lot of things when it comes to finally accessing your stuffs just in case you do not end up dead. The thing here is that for those who go the cold storage way, it may be hard to even no end up losing some of their stuffs or wherever they kept some details, because losses are usually the main thing that happens with natural disaster.
Generally, like you have said, as long as they could still have access to it, then, as long as they are alive, they can always come back to get their things, but we all know most people may find it hard to have access to their details.