When they are ready to take the risk then they also should face the consequences if the results went negative.
There is no choice.
No risk, no reward and this is gambling. The consequences are permanently there and there is no way to alter it. Losing it will make him think that he has to do it again.
Actually, when deciding to enter the crypto world, especially the gambling world, we must be ready for the risks. Every decision will always involve risks.
That is why we must know and understand exactly how to manage the risks in order to minimize the risks of losing.
If we have known about the risks, but we don't learn yet, only follow somebody else, not even trying to learn from its experience in gambling, the risks will be higher.
You are right that no risks, no rewards. If we don't take the risks, we may not get what we want. But if we want to take the risks, we must know how to minimize the risk, at least, how to avoid the condition in that risks.