I have heard that the value of other currencies fell so it's also possible with stable coins. If you guys are not comfortable of converting your bitcoins into stable coin, simply use the fiat structure or pair.
This will lessen your worry if you are seeing stable coins are no longer viable for the conversion. But, I won't use any stable coin because I've seen someone told it before that it has lost that much value until it die but I'm not generalizing the popular ones.
Supposedly all stablecoins should not crash at any point as they are tied to particular fiat currency. However, it will follow the price movement of that fiat currency. Unless that fiat really crashed hard also. If the stable coin is crashing whereas its counterpart fiat is not. Then, it is not doing its job being the stable coin. Maybe, you have to think twice on investing that stable coin if it's not doing the supposedly price stability.
Right.
And most stable coins follow the trend of US dollar so if the currency itself starts to fall then you should expect the value of it will drop too. It's attached to the value of dollar so basically it's own value will have its own share and will share the same effect whatever happens to dollar.
Same goes for other kind of stable coins attached to Euro or Cny.