Trust is everywhere. I eat at a cafe being trusted to pay later. In South Korea, I am trusted to have paid for my ticket upon entering the train (no one ever checked it). I trust every person I stroll past in a dark alley to not rob me at knifepoint. I am trusted by my customers to not deliver a backdoored codebase (yes, there is the letter of the contract, but really it comes down to interpersonal trust since they cannot verify it themselves). Etc., etc.
You will not find trust _in people_ anywhere in modern society.
Banks certify transactions, governments certify identity. We can go on and on here. Whole swathes of law around this topic too lol (see: fraud).
Crypto isn't about not trusting people, it's about not needing to trust strangers.
Some of them are scams, ironically, but when there's money involved... well it's pretty stupid to _just_ trust people.
Unless I've missed something?