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I work with a Muslim girl, and she is very nice, the only thing is that she is a girl who covers up a lot, her religion catches my attention, but honestly I already have mine well established, I don't like certain things like those that are more evident in terms of men having many wives, and Muslims are very intelligent people, and they have ideas that can change anything that can happen, they are proactive people, I ask him sometimes if they like gambling, and the bitcoin, all that, he tells me yes, and little by little I think he will give in so that he can interact there, that is not disrespecting his religion, having fun is not bad.
Gambling(maisîr) is totally prohibited by Islamic law. But if you think of it, it is the kind of gambling all of us here on this forum speak out against. The kind of gambling when you want to get rich without working hard for the money, that is what considered a "grave sin" in the Quran. If you gamble just for fun and you know that today you can win and tomorrow you can lose, then it is no longer an activity "with no consideration for the possibility of loss", which is prohibited by Islamic law. And having fun is not prohibited.
This is just my opinion. I'm not a mullah, nor am I a mufti.