Returning to gambling isn't the main problem, but returning with the same mentality as before.
Exactly my point, most people gamble with the mindset of making it their major source of income and that is what makes it more of a bad habit. It is best known to people with experience about the effect of gambling so returning to the same bad habit would be the biggest mistake anybody would make.
With their return, there is always a financial constraint that would make them come back to the same habit again and can only be eradicated by self control and self determination.
This is exactly what many people does on gambling, I literally gamble to make money too but mine isn't a do or die thing looking for next meal money. I don't gamble for fun, it's for me to make something for risking what I can afford and not for looking for a way to make money that is going to change my life. This is what many gamblers don't understand, they follow the money like their life depend so much on it that if they don't make that momey, they becomes sick.
When gambling becomes an only means to make money, I don't support such idea, they are looking for a way to become more poor than the money they are after. The question some gamblers don't ask is I believe they know gambling was there before they became one user, there has never been anyone that has made life changing money they can point but they believe they are the one that can do it when other people haven't done it in years, they don't want to accept the reality.