The ability to trade with minimal losses for the budget is an art that is known by long mistakes. Therefore, if there is an opportunity to use the services, then it will be more profitable to give the funds to the trader than to lose out of inexperience. Of course, the commission is not small, but when you risk to stay with a profit or spend everything, then the choice is obvious
It seems to me that trust management is more like a trading bot. You also redirect part of the funds to the trader and hope to get the benefit. With the only difference that a trader can have better luck than a trading bot