Curiosity will always be the biggest driver for every gambler, especially for those beginners who have just come to gambling, usually curiosity will dominate him more and also on the other hand temptation will continue to make you even more crazy in putting that curiosity. This is the starting point that will determine whether they will end up with addiction or not, but usually gamblers who come because they see the victory of others will find it difficult to hold back every curiosity because yes, what is in their mind is winning not gambling for entertainment.
I think that greed is the bigger driver than curiosity. Curiosity is even triggered by greed in this matter. Unless the gambler is not in for profit, then it is an exemption but to be honest, almost all gamblers are aiming for a win. Like you stated, if victory of others lead a person to his curiosity, then more likely that person aims to win an amount which can be said to be trigger by greed. So this simply means cutting off greed can make a gambler less likely to get hooked in gambling.
Greed is more identical to the sense of wanting to have more than one has or gets, if for curiosity is a sense where someone wants to find what he is looking for or what is the answer to a question mark for someone.
Both have the same role, which is the urge for someone to move forward and want to know more clearly what they don't know, and when they know what they are looking for they will understand and then study each case, because the greed that exists can also make someone more aggrressive in pursuit of victory and this can result in greater losses to them. If they can't control their greed it will be bad for them in the future, when someone has won and they feel unsatisfied and then continue the game again by increasing the amount of bets to get a bigger win ,here it can be sure they have experienced the name greed because with the victory they have got does not make them feel enough so they want a bigger win.
In this way, it is possible that they will experience defeat as well as the victory that they have obtained can be lost because they continue their game by increasing the amount of the bet, because it is unlikely that they will experience continuous luck, unless they have god-level luck by always getting their winnings easily, but that I think is unlikely, because luck is generally only occasionally not continuous. Not to mention the defeat that will make them upset, of course they have to consider everything if they want to continue the game so they don't regret it at the end, because most people can't accept the fact with a defeat that makes them upset because the victory that is not obtained is also the victory that has been obtained is lost. So they should be able to control themselves before gambling and consider everything lest they are easily driven by greed.
One of the things that they must have and emphasize on themselves and especially on their mindset is to apply self-control very firmly, they do not know what kind of temptations exist in gambling sessions, so it is the right action in general to be able to save them from things that are not wanted, especially losing large amounts, and also yes so that you avoid the name of a very bad addiction. There is no other way to overcome the disastrous effects of gambling, only self-control and strict limits, I hope you and they can implement it well.
I agree and one that can ensure that the gambler can apply a self-control is nullifying greed. Greed makes one to think irrationally, it also makes a person to chase winnings which is harmful in the end since it can make a gambler spend more than he can afford to lose to meet his goal.
In addition time moderation is always important and make sure that a person must not forget his other responsibilities and obligation. In short, don't let gambling be the center of his life.
Because if they cannot control their greedy nature they can spend all their money and even their savings, and this will also cause problems in the future for themselves, when they run out of money to gamble again they can just borrow money from friends or close relatives, not to mention if they have a selfish nature they can commit acts of violence against friends or close relatives to get loans, and if it gets wider they can commit criminal acts that are very risky.
Not only will they harm themselves, if they commit a crime, of course other people will also lose because what they do could be robbing, stealing or other crimes, where if they dare to commit these crimes it will further harm themselves as well as make it difficult for them because they may have to deal with the police.