The most important thing to understand is that it can be dangerous. As for me, a trader cannot always guarantee his profit.
From my own understanding, leverage trading is another form of gambling, not trading, and like you said understanding the danger/complication involved is the best and the first thing to know cause most people that participated in leverage were blind by the end profit.
If you are placing random trades without any knowledge then of course it’s gambling but we are not talking about gamblers here. Leveraged trading is for those who believe in strategic moves.