First time win or lose never has anything to do with gambling addict. The mindset one have for gambling is the major cause of being an addict. Immediately one start purchasing is lost or believing you can become a billionaire through gambling within second, then problem has started already.
The first time you win may not make a person addicted to gambling, but in fact, there are signs that he is starting to feel addicted to gambling. If he decides to return to gambling a few days later, the signs will get bigger and make him a gambling addict.
A person's mindset must be maintained so that they don't think that gambling can give them win. They must be able to understand that gambling is just entertainment. That way, they will not have to continue gambling, whatever the result. Gambling might make someone a billionaire but that's only for a lucky few.
And people who can win the first time should not think that they can win again another day. Otherwise, they will regret it because next time, there is no guarantee they can win. So it's better to be careful when gambling and only use money that you can afford.