It's the same even in emerging countries, so I know for sure South Asian and Southeast Asian, all banks that get the licence from the central bank benefit from a uniform deposit guarantee scheme. It's been tested in one or two countries already, and we've famously bailed out banks multiple times, post second world war anyway. When Japan came in the 1940s most countries here weren't independent so the scene was full or private banks and money disappeared overnight -- that was actually what led to deposit guarantees by independent governments.
Most people won't reach their deposit limits in their lifetime anyway...
But you're right, I've always thought most people aren't prepared for the responsibility that comes with owning Bitcoin -- and not knowledgeable enough to realise it.