If you use another states fiat, you will always be beholden to that state. If you use the native currency of the internet, Bitcoin, you are beholden to no state.
CAR has been exploited by its colonial parents for decades, they want less control over their destiny granted to others. By adopting Bitcoin, there are only a few simple things we agree on. 10 min blocks, 21M coins, valid blocks have a pow nonce that fits the difficulty equation, Blocks can only contain transactions that spend previously unspent outputs.