Trading - earn money in long run
Gambling - lose money in long run.
I don't know how someone can say it's the same thing.
I know why they are saying that trading and gambling is the same thing. The idea of trading is the same with gambling but in trading it's more professional to hear that way of risking your money unlike in gambling, it's like no formal way of risking your money. People thinks that you are wagering your money in gambling and in trading not.
that's the idea mate those who risk their money inside trading have some good insight regarding to the trade that they are supporting with unlike inside gambling you are really relying with luck hoping that your bet will win after the game you played.
And they are treating gambling and trading the same because of the risk that you may got but studying the whole concept they are totally different from each other. But if you wanted to choose, go for the best where you think you can excel, if you think that you are good with trading, choose it or if you think you are lucky, gamble.