By gambling one can get some winning trades here and there. Those few wins give them false hope. And they keep doing it until lose all the money. A trader should focus on learning. Otherwise one should not trade currency.
There is something similar in forex trading to playing in a casino. The same stacks for a certain currency. Possibly win. But there are also losses, which are many times greater. And which happen often both for beginners and professionals. The difference is that the professional will accept his failure, analyze what happened and start waiting for a favorable entry point into the market. And the layman will start to recoup. And as a result. Loss of account.