I think in forex, its just like any business or gambling even, some people should not do it. Just like in gambling, there are some that become homeless over it. They spend every dollar on gambling and they do not know what they're doing most of the time. If you lack knowledge and do not care to learn then don't trade cause you're gambling and you will lose. I don't doubt that there are gamblers in forex. You should not trade if you can't control your money or risks or greed and you're impulsive. There are people out there who would get really impulsive at certain things and no way can they control their money so they will lose miserably in forex. I even know some people who drop all their money on the blackjack as they first get to a casino so the same people will do the same in forex. What are your other lists of people who should not do forex?