So today they asking for our face photo with ID, and next time they will want maybe our DNA or other biometric identification. Who knows.
LOL you're overreacting. You need to understand that them asking for KYC verification is to protect
them and protect
you, if you don't understand how that works, then you're better off using a DEX.
I don't understand how they can rob people in this way.
They're not robbing anyone (if you think they are, provide proof). They're simply asking for KYC because they need to comply with regulations. Plus, they want to verify the identity of the account owner, if you have nothing to hide, just submit your id photo.