Make sense. With trading, if you don't know what you are doing and you just keep on trading without any plan at all as to when to exit or sell, you are just like gambling. Much more if you are trading money that you can't afford to lose - it would be painful.
We should first make sure that the money we use for gambling or trading is something that we can spend or afford. I still think that we will have better chance to get money in trading than gambling although Im not really a fan of both because I will choose investment if I want to get some money