A common mistake of a gambler is thinking that he can still win more money in betting. The main thing you regret is not the loss but the opportunity to take advantage that you missed, thinking you had a chance to win more money, this is greed that brings regret.
That’s not true. When you bet on a parlay, you lock in the odds and simply wait for the outcome, cashing out while watching the games feels even greedier to me. Not only that, but it also adds unnecessary stress to gambling. Cash out isn’t really a strategy; it’s something you trigger only when absolutely necessary.
In fact, most of the time, cash out in sports betting is used to minimize losses, when we’re no longer confident in our bet, we cash out to play it safe.
Yes basically gamblers are oriented towards winning money if they can take money at that time or before why not take it, it's as simple as that way of thinking, and what happened to the OP is a common problem that we find ourselves in parlay gambling or any gambling before losing all the money we have earned, some people may have confidence that they will get a much bigger win than if they cash out before the bet is finished, but some people don't care they prefer to play the bet to the end to enjoy the results either losing or really lucky to get a lot of winnings.