For me, these are mutually exclusive things and it is not clear how the ability to trade and at the same time the complete lack of money for trading can be combined. Maybe things are different, he just thinks he knows how to trade, but in fact he's just a loser who lost a deposit.
Based on my experience analyzing PAMM accounts, I can say for sure that you don't have to be a successful trader to manage other people's money. In fact, it's often the opposite. It's a paradox
It is not clear how you will manage the accounts of other clients if you do not know how to trade. Of course, a beginner who does not understand anything about trading can also make a profit, but in any case, sooner or later he will lose the deposit anyway, and if he manages the accounts of other participants, they will also lose their deposit.