But you're still need to use fiat because you can't use Bitcoin to pay anything in your country, so you're still trusting fiat even you're not use it as to store your wealth. We might see a big change when CBDC has been launched by the government, it's either they will ban Bitcoin or they still consider to accept it. But you can still use Bitcoin since there's a way to trade Bitcoin without need a permission from centralized entity, as long as you not make any mistake.