Apart from that.. I think people gamble or not, depending on whether or not they are close to gambling, the more addicted they are.. the more determined they will be to gamble without thinking about it that actually we should be responsible gambler.
Close or not, addicted or not, it isn't the matter IMO. Indeed that addicted gamblers would tend to play without even use their brain for various reasons such as greediness, chasing it losses or etc. However, the mindset of how to treat gambling is the most important point here, whether do you gamble just for entertainment purposes or as a source of income. If you treat gambling as a source of income then you have wrong from the beginning, it's better to quit gambling and focus on your job in real life.
In general, indeed basically we have to be able to manage finances, make gambling as a free time filler without having to have an excessive sense of interest.
Keep in mind that self-management also important, if you couldn't control your emotions high likely the house would take all of your funds