I don't agree to the opinion that gambling not be engaged in by people especially when they know how to control their emotions when they're winning as well as when they're losing. Unless you can't gamble responsibly, gambling isn't bad in my own opinion
Gambling isn't bad, of course.
But the bad thing is that when we gamble, we cannot control ourselves from being emotional or greedy and that is a vice that most gamblers have.
There is no harm in always gambling as long as you don't overdo it and stay on a responsible path.
Gambling will be something fun if we use it within certain limits without expecting a big win, although there is no harm in hoping, but don't expect too much from gambling.