Why do you need to talk to anybody before selling your bitcoin to fiat? You can do this on a binance exchange, they will pair you with someone who will pay you with the exact currency you are spending in your country.
Why, you ask? Security will be one of the major reasons; another thing is trust, followed by the right way to do it. With the things happening currently in the crypto space, I don't blame anyone who is seeking direction on the way to do things right in order not to fall victim to some sort of scam or fund seizure. It's better to seek direction most times than to make a mistake and seek aid. Selling a house requires a huge amount of money, which is enough to make some seek the best way to exchange that.
If you don't trust exchanges well Binance is the most trusted on my list, so there is nothing to be scared of using this exchange.
Binance might appear to be the best based on individual ratings, but it won't be the best for all, as all of us use different criteria to make our own ratings, and to be clear, I don't see Binance as something that's completely safe, as nothing on the internet is completely safe; it's just a matter of time; they are hackable, etc.
Even the highly recommended DEX has proven to be safe and transparent, but that does not make them completely safe; they can still be hacked and penetrated. The only difference, and what usually makes the DEX better, is that your data won't be leaked to others when hackers access the database, and your funds won't be stolen as they are not storing them for you in the first place.