Gambling is for those people who know in detail about the risks of gambling and then participate in gambling. For those who don't know how to take risks, it's not gambling, but gambling with a combination of gains and losses. Only those who have the ability to understand this are gamblers. Again, those who participate in gambling just for the pleasure of it, despite knowing the risks, are essentially the real gamblers.
People say that life is all about taking risks, people are being motivated by this statement forgetting about the consequences of their actions. A gambler is someone that has accepted the outcome of this risks that he is taking. A true gambler that learns from his mistakes becomes more careful when gambling because he knows the implications and downsides that comes with it when things go wrong