Is there a situation where we woke up one day and found out all our bitcoins vanished? Blockchain or DLT has a common explanation where it is calculated to solve double spending problem which represent a incomparable transaction that are solve through the computers in the network?
If you think about it logically, something like that is not possible for bitcoin. Because as long as I buy bitcoins until now, I have never heard of someone mysteriously losing bitcoins, without a trace. So I don't really believe it, let alone look at the security implemented in these existing wallets, all of them have very strong security, and it looks like it will be very difficult, even for great hackers.
If the price goes to zero, it's still reasonable. Because only its value decreases and disappears. But this also does not apply to bitcoin, the decentralization that is applied to bitcoin means that no one can play with the price. So in conclusion, bitcoin disappears suddenly, whether it's in terms of price or bitcoin itself, it's very unlikely.