not sure why they needed to know my financial info, such as how much $$ i EARN in a year, and how many years I traded forex specifically

not sure why they needed to know my financial info, such as how much $$ i EARN in a year, and how many years I traded forex specifically. Fortunately,, very god support, that guided me through KYC very well. The trading itself, best thing is spreads, I also enjjoyed the copytrading app they have.