ESalam that same logic can be applied to eating. I understand if it's a personal religious view, but why mandate this view on everyone?
If a person doesn't drink or gamble, he can still be perfectly happy.
If a person doesn't eat, he dies.
I would not do both at the same time. A good way to lose a lot of money.:yes:
And the reason why drinks are free at the tables in Vegas.
OK, I would like to address the "why religions teach this" aspect. Drunkenness is the sin IMHO. Gambling is addictive. If a man works all week and stops off for two beers and buys a lottery ticket, I don't believe there is any harm. If he spends his whole paycheck and goes to jail for DUI, there is much harm.
I think there are other aspects to gambling, which is where sin may come into it.
There's that old saying: "the lottery is a tax on people who are bad at math." Some gambling can be seen as foolishness at any level. Someone who buys a lottery ticket every week with the expectation of winning eventually might only be making a small bad decision, but it's still a bad decision.
Also, some gambling can become a way for one person to take advantage of another. I think that "card sharking" would be looked down on for the same reasons that usury is: the smarter or more powerful person is profiting not from his own work, but from the misunderstanding or desperateness of the other person. It's not exactly charitable.
Now... personally, I do gamble occasionally, but with a different mindset. When I buy a lottery ticket (which isn't very often, but when I do), I realize that I'm not so much buying a realistic chance at the jackpot as buying "permission" to dream about being a millionaire for a few days. When I go to the casino (which, again, isn't very often at all), I'll play craps, but with the same mindset as when I buy a movie ticket: I'm paying for entertainment. It's a fun game by itself; anything I win is gravy.
Still, I think that negative aspect of gambling is worth considering: often, gambling is a way of one person to take advantage of another, and in that respect, it's either rather uncharitable or enables uncharitableness, even in moderation.