Saving our hard earned money have never been a bad idea, but their are certain things we need to consider before thinking of saving, such as inflation.
Inflation is truly the real enemy to every money that is being saved up, because when the time is right like a year time, when it should be used for it purpose, the value wouldn't be as how it actually was when you started saving it, but on the other hand, if we have been investing that money into Bitcoin, land or gold bit by bit, over the course of a year, the value of that your investment would have added additional value compared to our savings that will be eaten up by inflation.
So too me we should think of investing more of our money than saving it, so that inflation wouldn't eat it up.
Your not wrong but it depends which way and how long will the person invest, let's not just view our investment as money supplier every year or something else. Everyone have their different reasons for investing and some might have another reason for saving their money using fiat currency, in what ways investing should be more preferable compared to saving. You can mention so many investment like gold, bitcoin etc but some investment might not serve as profit due to lack of understanding as an investor, what I'm trying to say is knowing the kind of investment and understanding the terms before investing is the best.
Let's not forget investing requires money and sometimes you need to exhibit the habit of patient or else you can't invest for long.