Well, whether it is a personal decision or not mostly depends on the context each one of us has and is living through.
For example, someone who is independent and has a job can certainly decide what to do with their money. On the other hand if we are talking about a young person living with their religious parents in a also religious country and community, I would not be about his choice to quite gambling or not.
We could argue that eventually an addict would do anything in their power to gamble, but I personally think that depends on the stage that person would be.
In terms of influence that's affect how the person will act with how they treat their gambling participation, I like what you said about the people that surround the person who might be prone to being addicted, the chance not to fall that hard or engage that much is possible though like what you said it will be depend from how the person will take it. But again, if that person is being surrounded by people who are not a fan of this activity, his chance to bring himself into addiction might not be that far.
In order to restrain yourself from unexpected expenses, you need to take friends with you who really shouldn't be gambling fans. After all, if they are the same players, then they will not be of any use, but rather even harm. After all, they themselves can fall into a tilt or uncontrolled waste, making the situation of the player for whom they came here much worse. I think it's best to take a wife, because the husband and wife have a common budget and both worry about it not being squandered.
Well, if we are realistic, obviously most of the times wives won't agree on going to a casino with their husbands, most women do not like the activity of gambling specially if they are conservative house-wives.
It would better to go with a friend and previously to settle an agreement with them about adding money individually to a wager poll and in equal parts. The winning amounts from the gaming would also be spread equally amoung the friends. So all of them have a common interest on watching over their budget and not over spend.
If anyone here has managed to marry or keep a long lasting relationship with a woman who also enjoys gambling in a responsible way, then that man deserves my congratulations. It would be something relatively weird to see here.
You have correctly stated that most wives will not go to the casino as husbands, but I often observe new types of families when the wife is not just a housewife and someone who cooks food, but also a friend for her husband, she is ready to play computer games with him and even do extreme sports. But in general, wives will be strict about gambling, so it's still better to take friends with you for your control in games.
Recently I read a story about a family where the wife was neutral, she did not scold her husband for betting, and surprisingly, he realized at some point that he was ashamed in front of her. That she didn't give up on him, but she also suffered financially because of the losses. And in the end, her husband decided not to bet anymore. It's a pity not all stories end so well.