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.
In addition, we should note this: that responsible gambling should be all about risk; it should be about setting up boundaries and prioritising it as fun or entertainment over financial gain. I think by having to acknowledge that losses can be part of the game and not chasing them, gamblers can enjoy the experience without jeopardising their financial stability. It should really be a great approach to viewing gambling as a form of entertainment at an early age rather than viewing it as an investment, which some gamblers today are doing.