Hobbies and pleasures combined will be happiness for themselves, it may seem negative for ordinary people but it is different from the perspective of gambling lovers and that because their pleasure is in it, it is difficult to stop someone who has become part of their daily life in gambling,
It is a fact that things are like this for some people, but as you say, this is a combination of pleasure giving happiness to many, you also have to take into consideration some special things, like the fact that if you as a person run out of money, not only will you be left without pleasure and happiness but you will be committing an act of great irresponsibility, and that is something that cannot be allowed, for everything, and notice that for everything in life you need money, even to go to the bathroom you need to have money, why? you have to pay for water, the paper with which you clean yourself and the fact of keeping it clean, that is money invested, necessary and basic but it is money, and it is only needed there, because money is necessary for everything, that is why in a casino we must be very careful and jealous with our money.
Money has become an essential need to carry out the basic necessities and so it becomes our responsibility to save enough money to live a peaceful life.
Gambling shouldn't become the reason for not saving enough money and if it does then only we ourself are to be blamed for it.
Sure thing that things like gambling derives pleasure which we humans become addicted to but it shouldn't become the reason of our disruption.
That is where we need to be mindful and take the necessary action when we cross the line.