There two major reason why people do gambling. One primary reason is to make profit which is the common one and the other one is to be entertained, experience the adrenaline rush and dopamine as they wager their money on a casino. There are people that has other reasons. We play do gambling because we want to gain something or achieve something and this is why people gets addicted to because of not fulfilling it or not getting enough of it. Failing to do their goals may result to addiction and becoming irresponsible of their actions.
Yes and you're right, gambling must first constitute having fun and then of the opportunity of making money comes then euch could be well embraced, a gambler does not need to over stressed himself all in the mame of making money or winning a particular bet because it's not what we see comes the way we expect, there's risk in gambling which means not everything you predicted about will be accurate and one need not to feel depressed or be too nervous about winning than catching fun which is meant fornus to achieve at the end of the day, such imbalances cause emotional depression.