There is always the hard mentality among humans and that's the mentality of breaking rules and that includes even the one set by themselves and only few people can stick to principles set by themselves and same thing goes with gambling habits. Like you said too of everything is not good but most people just tend to ignore and once you have reached the height of addiction with your habits then it's probably a one way journey back because it's takes grace to stop it .
So the mentality of breaking the rules is considered something that gamblers usually do. But it really does happen where gamblers often break the rules so that in gambling and, instead of staying within the limits, they break them unintentionally. And after the incident, they think that it's okay if they break their boundaries or their own rules. In the end, they often break their own rules just to satisfy their desire to gamble. That can make people addicted to gambling because if they break the rules too often and think it's okay, it will only make them lose more often and end up addicted to gambling.
Yes, obeying your own rules to limits gambling is indeed difficult if you are already addicted to gambling, but all this can be prevented if gambler are able to thinks clearly and can do it responsibly so that they can controls themselves and still be able to set these limits so that they don't experience too much many losses because they are able to obey the rules that they themselves apply.
and this is very important to apply to every gambler not to overdo it when playings so that they can still create limits when gambling.