First time when new gambler try with gambling give way how looks easy to win
It is because of beginners luck and he's not yet used to losing and it's making his experience easy unlike the other gamblers who been gambling for a long time.
The beginners luck is a big attraction of gambling sites. Myself too experienced it during my initial days of gambling. This drives the beginners go further with big funds. Myself had good luck, but the same didn't last as I don't have control on money management. Later the mind never accept the defeat and want the lost funds back. In the race of recovering the funds I'm running for years.
One who has experienced the losses on gambling can easily stand a chance to profit and experiment trading.
Although they're not using it to attract literally to the new gamblers and potential customers that they might have. It's just a common belief that we're having when we knew somebody gambles for the first time.
And with the transition from gambling to trading, I agree. He'll be getting the idea of taking a risk as trading has that as well but it's different from the usual gambling activity that he/she was introduced.