.........................
That's being called human. Definitely, who wouldn't want to win. But you will feel relaxed if you are using spare money and you are not in a rush for anything. You will likely enjoy the game if you are using extra funds and not from loaned money. So even if you lose, you are not agitated that someone will be after you.
And one thing that makes me not quite understand them (Gambling Addicts), they always argue that this is about fun, but in reality there are not a few gamblers who prioritize the fun behind the obligations and needs that they should fulfill first. Worse, as you said, there are some gamblers who deliberately take loans in order to be able to gamble, or those who use money that should be used to meet their needs and also their families, but stupidly they deliberately divert the money to fulfill their gambling desires.
Addiction is a disease that people who suffer from it rarely realize they are addicted to. Most of the time, people are playing for fun. It turns out that they are people who have problems in the real world. To hide from society and their problems, they start to look at gambling as their only source of entertainment.
They spend more hours playing than interacting with other people in the real world. As a result, they become addicted to gambling and can no longer stop playing. Everything gets worse because, since they do not interact with other people, it takes time to discover that they are addicted and to give them the necessary care to cure themselves.