Holding crypto is like gambling as well because we dont know the future of our holdings.
Just like now all of my coins in my portfolio is slowly losing their value but I keep holding because I know the risk if you invest in crypto.
Both of you are right, and I don't have any doubt about that. Holding crypto is not gambling because we know how to analyze the coins price moves so that we can prevent losing money. And we have so many coins that can give us a way to make a profit in the future.
Crypto holding will be gambling if he can not watch and analyze the market and only depends on some people strategy. He will lose his investment value, and he cannot make a profit from gambling. But if he can know what decision he should use so he can have a chance to win the money.
If that person in the marriage, they need to open or share what they did to their wife or husband, so there is no miscommunication between them.