I think that casino is like a sport event or cinema. You pay money for emotions, for fun. When i go gambling i decide before it that this money i spend. If i win smth - it is just additional bonus, additional emotions.
And if someone wants to get money for life from casino - it is a big mistake, often it means that this man will lose all his money without any result.
This is the same view that I hold as well, that is what they are for and casinos tell you that directly, they are for entertainment purposes and anyone thinking about making a fortune with them is probably going to end up being incredibly disappointed by the results they get, after all we need to think about this by being rational, a casino exist to provide a service and any business is looking to make money as a result of providing that service, if they instead lost money to the gamblers then it will be impossible for them to remain in business for long which is against what they want to achieve, so it is the gamblers that have to lose money for the casino to remain in business.
Every business created for getting profit, it`s ok - no one wants to work for free. And a casino gives a chance to win. Only chance, no any guarantee. For the normal gambler, who wants to get emotions from the process - it is enough. The problem only with gamblers that sure that they must win, some of them we see even on this board.