Of course a gambler should be able to know their limits and how much they should allocate while gambling and shouldn't expect something Very big while gambling, and yes any amount used to gamble shouldn't be expected to come back in 100 folds rather whenever you gamble and have winning then it increases your chances.
Gambling is simple provided your gambling within your means and not above your limits, when you gamble out of proportion it gives you that stressing moment to be wanting to recover what you had already lost while gambling.
normally every gambler is suppose to know their limits and how much money they should always allocate to gambling. And they shouldn't also expect to get back the amount of money they have allocated to gambling, because if they do that is chasing lose, and it can land them in more loses, because if they are actually gambling for fun and not the other way round they wouldn't be expecting much from gambling, rather it only increases their chances. Gambling becomes a game for fun and a game for entertainment when you don't take it as investing and only gamble with the money you can afford to lose period.
Have seen people taking gambling as a game of investing knowing to well that the yielding results are not always trusted or reliable. Gambling is meant for entertainment and easing one time if they are not solely occupied but people nowadays sees gambling as a place to make more money and Yes, we can't deny the fact that chances are possible but it's something we should capitalize on the outcome to determines our ends meet.
I wouldn't call investing, you don't have mitigation risk in gambling. At least in investing, you have stop lose and so before your capital went 0, at least you will have the power to stop it. In gambling, the more you lose, the more that you want to recover and put more money.
Maybe there are smart gamblers that can stop at certain point and say no more for the day. But I'm seeing that the majority here gamblers for money and we wanted more and so it's very hard to quit once we are winning specially jackpot price.