Say you just want to "save your money". You have a "savings account". But what does that actually mean? You put US dollars into an account and those dollars sit there, potentially collecting a small amount of interest.
But the value of the US Dollar can go down, and depreciate even faster than your interest payments. Hence you are not "saving your money", but rather you are investing in USD when you do that. And your bet might pay off: all of the other investments you would have chosen instead of USD could have faired much worse.
Gambling and investing/trading could be seen as the same thing and you are not wrong there, however saving can be quite different and carry out different/better results, I mean of course you should not put all your money as USD or other national currencies and let it sit in your bank account despite whatever interest they are paying you, "the house always wins" is also true for banks, they are making more interest from your money than the number that are paying you.
A mixture of different digital and physical assets always makes for a better/less riskier investment over all, like buying some lands, maybe a tech stocks that you like their products and are optimistic that they will appreciate in value mid/long term, some physical gold or digital gold funds, and fully digital assets like Bitcoin/Ethereum.
This way you are practically making sure you minimized your risk and exposure to heavy drops in value to the minimum while not missing out on too much potential profit with going with some low risk/low return investment like just Gold for instance.