Yes, it can be good sometimes. But this is a personal thing, depending on the gambler's own characteristics. Some people prefer to cash out early and feel comfortable doing so. It depends on what makes you happy when gambling; it's not always the fear of losing everything, but something already established from the start.
I believe that patience is absolutely important in life, whether in play, at work, or in personal relationships. It's not just a question of when and how to cash in, it's a way of life.
Rushing and being impulsive leads to nothing but making mistake after mistake.
Yes you are right patience is very important in life, some set of people don't value patience and they don't know how important patience is in our life, some set of people has missed out from big opportunity that would have better there life but because they didn't have patience they lost it.
People rush a lot some car accident that happens is as a result of rushing trying to meet up to one thing or the other and they speed without even caring for there life, nothing is more important than your life, if you die today you have lost everything so calm down in life there's no reason to rush life.
Those that rush when gambling are mostly gambling to make money, if you are gambling for fun you will always want to see the end to know how good you are in prediction, people has lost money because of lack of patience in gambling, I'm not saying you should not cash out, in some case you need to cash out especially when the cash out is huge amount.