Cost to transfer USDT now: $20 at the very cheapest and slowest speed. Average is $40.
I made my USDT withdrawal on ERC-20 chain and the cost is $40. That is crazy expensive and I don't like it but I don't have any option to choose and reduce the withdrawal fee. I stored my USDT on an exchange years ago and it has low trading volume now. They don't provide TRC-20 chain and I can not convert my USDT to altcoins. The spread on their altcoin pairs are big and it can not help me.
Finally I have to withdraw my fund with USDT on ERC-20 and afford the expensive cost.
This makes me wonder, will stablecoins replace Fiat currencies in the future? If not, why? Is there a possibility governments will adopt stablecoins as their own instead of launching digital currencies from scratch? Your input will be greatly appreciated. Thanks in advance.
They won't replace fiat currencies.
Fiat currencies will have strong competitors, stable coins, bitcoin and altcoins but they won't disappear completely. Those currencies (bitcoin, altcoins, stable coins, fiat) will exist together. The cake portion for fiat currencies will be taken over and shared more by other currency types but fiat won't be killed.
My capital has three of them: bitcoin, altcoins, fiat and stable coins. I reshuffle their allocation with time but never use a single type to store all of my fund. It is very risky.