I think Gambling is prohibited in some religious. That's why people who believe in God or believe in the religion doesn’t like gambling. I know, in Islam gambling is Haram. If someone do gambling and lives hos life on that, he will be thrown to hell.
It is true, it is prohibited in Islam but in other religion they don't emphasize that gambling is a sin.
I'm a Christian and I gamble, and my family doesn't mind as my father also gambles, in general it doesn't affect our life, so for me, why should people be prohibited when it's fun to gamble, maybe the measure in some religion is more on preventive and they generalize the solution to the possible problem it will bring because if more gamblers are irresponsible, it will ruin his life and his family, thanks God I am not.
My family also Doesn't support gambling. People here says, they will die without eating but never earn by gambling.
If they want to live, gambling is not the solution, people gamble to spend to have fun but not to earn, at least for the majority.