It's common knowledge now that USDT is centralized. Worth holding? No. I only use it for short them trades. Fiat is no better but I would rather have it because I'd be dealing directly with my local bank than some private company (Tether) registered in another country
Fiat is better, not that you are only dealing with your bank, you are also dealing with your central bank of your country, unlike tether.
As a normal user, I don't expect your account to be frozen, but they can.
I am thinking of a way I am using a private key wallet but unknowingly make a deal with a scam that just sent USDT to me in a way tether company will see me who is innocent as the criminal and freeze my coin.
- USDC: It is centralized but better than Tether and is well listed in many exchanges.
- DAI: Central currency but cannot be frozen and listed in some exchanges.
- BUSD: many be better than Tether ?!
I will prefer to hold Dai with the good research I have done about the coin. I do not know why I still see BUSD suspicious but I may not be right.