I think having a trading comes a lot of advice from the master, a book about the many outstanding trading and clues we can get free on the internet.
Trading is easier and also way more profitable, its less more risky than gambling and also more profitable most of the times.
I dont think trading is easier than gambling, in trading you need to learn do analysis before you put your money, while gambling is just simply put your money and click the button, most of the people choose trading because it is more predictable and we can use our skill to minimalize the risk