People who choose to pursue gambling not for fun or as entertainment, it is certain that the percentage of failures will befall them.
And that won't stop them because they're determined to do what they think that suits them and that's to pursue gambling not as entertainment but to make money out of it.
In fact, every gambler knows that if they continue to chase the lost money then there are two choices, namely to win and be able to return the lost money or lose which will add to problems and worsen their condition.
That's always the two possible outcome.
But most gamblers are not aware that they will face the problem of gambling addiction and prefer the risk to continue to chase their lost money and expect a bigger return because they have been consumed or influenced by the suggestion system that is built in gambling, namely as if they will win for a while again.
I think that most knew it, they're gambler once and for all and they know the impact of it in continuous run. Whether they chase losses, do it for fun or for the profit.