How is it safe when it's so volatile and based on speculation?

As someone from a country which has had its currency's value slashed to half 5 years ago, I genuinely don't see how Bitcoin is safe at all. If anything, gold or real estate are safer.

Sure, if it is somehow guaranteed that I won't wake up tomorrow seeing 1 BTC = $30 000, I could see your argument. But is that guaranteed?

I would also like to add that the swings that BTC takes are unpredictable (at least for the common people who would benefit from it being a safe storage for their wealth).