What do you think the solution for those people who want to use DEX/P2P but their country aren't accept USD or EUR? is there such digital bank that accept every currency and the fees is worth to use?
Exchange peer-to-peer BTC <-> Revolut USD/EUR, and convert the fiat to your national currency. It must support
literally every national currency. They say they don't charge anything for the conversion.
I agree that Centralized exchanges are more convenient and have better liquidity
We're going to agree on liquidity, but Bisq is much more convenient to use than, say, Binance. It's much easier to have Bisq installed, running, and having a trade completed, in comparison with Binance, which you'll have to submit a ton of stuff, solve a bunch of captchas, verify your email address / phone number etc., and wait for an undefined time to have your account approved.