Among the many interviews I have watched with gamblers who have recovered from addiction, there is a common feature - they say that the danger of starting to play again remains with them for life. It's like a stigma that always stays with you, and you can't get rid of it - you feel that you have to control yourself, and you need to avoid all kinds of gambling. In no case can you even play on a demo account, this is one of the rules of self-control. It is believed that a demo account is one step towards starting to play for real money again. Of course, it is much easier to control yourself if there are native people nearby.
This is something that happens to very single person that has experimented an addiction, as despite the fact that they know that going back to their former addiction is something bad they cannot help but to crave for those sensations again, now this is very problematic for those that are addicted to illegal drugs, but it should be many times worse for those that got addicted to something that is legal, as the source of their addiction is everywhere and every single day is a struggle for them.