u can earn ofcourse is a advantage and moreover u have some fun and thrill involved.
and what about the money lost ? moreover the entertainment sometimes get converted in anxiety
If you can manage it accordingly, I don't see how doing some innocent gambling from tiem to time could bring anyone any problems of anxiety. If you are not betting a ridiculus amount of money, there is no chance of anxiety, because anxiety only happens when you start betting way too much for your pocket.
You never know actually, he has a point. I have seen guys watching matches while eating all their nails in anxiety , I think until and unless you have a cool mind and settled life, you should not gamble.