On the other hand chasing big wins in gambling is always a bad idea, because after all gambling is always a game that cannot be predicted or the results at the end of the session are always unknown, or that means there is absolutely no guarantee of winning at the end of the session, so I think it is very unlikely for anyone to succeed in winning big to be used as a retirement fund and quit gambling, because it is reasonable to say that even if you manage to win big, the amount you lose can also be quite large, so it's like giving back all the money you have lost before. And another thing is that there is no retirement age in gambling, simply put if you have money and want to gamble then you can gamble as long as you gamble the right way regardless of your age.
Gambling is very emotionally involved and curious and this means that I think there is very little chance of people being able to retire from gambling, especially if they manage to win big which as we know can make it difficult for a gambler to ignore his greed. Yes I also see it like that which is where gambling is a place to practice self-discipline on how strong we control our brains and minds such as in terms of ignoring various temptations that look tempting, and besides yes making it as entertainment is indeed much better than making money, one of the reasons is because winning always depends on luck while luck can never be controlled and this is why it makes no sense to make gambling a place to earn.