So you were underaged when you started or why do you refuse to do KYC? Seems so you have something to hide.

Don't we get tired of overused (and incorrect) bullshit cliches?
Why would you want others knowing your personal details if you should be able to keep that data to yourself? It's similar to as if you were abruptly stopped in the middle of the street and frisked.
Do you comply? If not, you must have something to hide! While you may not have anything shady to hide, you should not subject yourself to seizure of privacy just because of a contrived principle.