Just about every single major business or corporation in the world must check its ethics at the door to succeed. Casinos do take advantage of human weakness, but so does everyone else. McDonalds targets those who enjoy greasy food, does that mean that if the drive-thru guy gives you too much change back that you should just drive off?
At least casinos are not directly responsible for deaths as is the case for Firestone, they're not responsible for life changing injuries such as pharmaceutical companies selling a knowingly harmfull product. Casinos routinely cut people off from alcohol if they have gone too far. Does a department store cut you off if you have spent too much and are in financial trouble, of course not, they send you another credit card. Casinos have GA pamphlets at the cage, change booths, and electronic messages on the ATM screens. Does 7-11 ever try to stop selling you cigarettes?
Senior Citizens have worked hard their entire life, and for many of them gambling is their only form of social life they have. They do not gamble because they are addicted, but because they know their life is in its final stage and they want to enjoy the money they have while they can. They are not able to play tennis or basketball, and many of them are lonely and the friendly dealer or PC is their only friend in life.
Adults are responsible, if not then they must learn by their mistakes or face a hard life. Gambling is a choice because America is land of the free. Gambling provides a few hundred thousand jobs in America, and millions more in taxes. Gambling is not an evil that some like to make it out to be, but it is a recreational hobby, a memorable vacation, a much needed job, and most importantly an American symbol of freedom and independance.

