I agree with your opinion, taking a big risk by risking wedding money to seek momentary pleasure is a very wrong step, regardless of the winning opportunities available. I don't think his future wife would tolerate such actions, and if her mind was on track, she would choose to leave him. Besides, it's not just about risk, but about breaking established moral boundaries, I don't think almost anyone in any environment would tolerate such a bet. Besides that, if someone gambles with their marriage savings, you can be sure that they will not gain any trust from their surroundings. Gamble within reasonable limits, because if you act too crazy, the consequences will be quite big.
Indeed, we should be able to allocate a certain amount of money to gambling, it is not money that will be used for other purposes, of course risking the wedding money is not a good idea because apart from losing the money, you can also experience serious conflict because you have risked the money for something more important. . with him daring to do this, I think it is because he is addicted to gambling. Because someone who is addicted to gambling, of course they can be reckless by doing other things that are at great risk just to be able to satisfy the taste they want, but this action will of course only make them suffer. there will be big problems in the future.
Of course, if their partner finds out about this, I don't think they will think twice, most likely their partner will leave them. Cases that are almost similar to what happened in my country have recently become popular where a husband and wife who both have quite prestigious jobs were destroyed because the husband was addicted to gambling using his wife's money, so this became a disaster for both parties. Indeed, the braver someone who is addicted is, the braver he will continue to be to do even crazier things, but as you said, the crazier his actions are, the greater the impact and consequences. This impact and consequences are negative.