One of biggest problem with DEX/P2P is lack of local currency. If you don't use USD or EUR, the option would be severally limited and sometimes with unfavorable exchange rate.
Yes, but that's the kind of message I'm trying to get across too, I think that if more people used P2P / DEX services, the supply would automatically be greater, and that would solve the currencies' problem.
Personally, I never buy BTC (my BTC comes from mining + signature campaigns and my salaries paid directly in BTC), but I do sell some dusts on a regular basis. I regularly receive offers for currencies other than USD or EUR, which I accept. Depending on the country and the bank, conversion fees below certain amounts are not a problem (at least for me). I give preference to the less common fiat currencies when I sell, precisely because the point you raise is true, some users have difficulty using their local FIAT in P2P.
You are judging by the relevance of Bitcoin today, but neglecting the impact of CEX in helping it to have a deeper root. CEX builds businesses and eases around Bitcoin. And I would continue to say that it wouldn't have achieved this popularity and adoption so fast without CEX. CEX is the one that builds the trust of people more on Bitcoin due to the ease of accessibility of their coins and the ability to use them fast and interchangeably within the system. It offers the added advantages that DEX can't offer, which include higher liquidity, zero exchange fee and much more.
I must confess that I don't look too closely at the value of BTC in FIAT. I sell some BTC to pay for certain things, and like everyone else, I'm not against the idea of BTC having a high fiat value. But I would have said the same thing with BTC at 3,000 usd, which is basically the same to me. I'm not denying that CEX has helped push up BTC's popularity and therefore its price. However, I don't deny either that they are contributing to denature BTC from its original purpose.
It is more easily you don't trade and only invest.
Fair enough. I tend to forget that people use BTC for trading, it's not my personal conception of its use but you make a very good point.
How can you sell/buy your bitcoin to/from usd or any other local currency without a cex?
Bitcoin ATMs are a good solution for example. Some own excessive high fees, some not, it depends of your geographical situation of course.
You will basically depend on p2p, which lacks security and is based on trust. Where is the trustless here?
Bisq is fine regarding this concern IMO. Peachbitcoin and the system of escrow too, but you have to trust them indeed.
Peach Bitcoin ask their users to install their software in order to use their service, I don't feel safe and trust them. If their service is a web based, I would explore their site and compare the fee with the other sites.
Fair enough. I have contacted them
myself on the forum to ask if they are planning to stay on their « mobile app only » policy only or not, the lack of website UI is a problem for me too (but still less than giving my KYC to Coinbase or others bandits).