It is a very usual thing to happen that if a gambler wins on their first bet, it is followed by an all-in decision. And this kind of idea is not just risky but a suicidal move. That is why many gamblers went home empty-handed from the casino because of uncontrolled gambling habits.
All-in is supposed to be the hardest decision for a gambler, I would say the last thing in mind, but players who after much trials, win, rush to go all-in. It's devastating, because losing knows no all-in, and more painful to cut short the thrills of gaming for an uncertain quicker and bigger win.
The only time I patronize all-in in gambling is when I am tired of playing and in a hurry to stop, if I still have a balance in my account which I don't want to leave on the account and don't want to withdraw it either, then I risk it on all-in, if I win, I scream 😱 wow, now I can withdraw depending on the amount I won, but If I lose it, it's fine by me since that means that I can finally have the rest I so much desire at that very moment.
A gambler who is not well experienced with gambling and the risks involved with going all-in on a bet or game should never try it, except the person is concious of this decision and had made up his or her mind to take without any form of regret, whatever be the outcome of that decision.