I believe this is exact definition of inflationary corruption of society. Everyone knows prices are increasing but everyone also knows money they own now is more valuable than money of tomorrow. This causes people to spend their money on many different kinds of markets, so they will be avoiding becoming poorer over time. This is net negative for society, sure, but most individuals don't know how to properly invest their money anyways. Best thing they know is to spend.
People won’t live and survive if they never spend and buy their necessities in life. So that’s already given. However, if you only focus on spending and only earn from a single source of income, you will certainly become poorer and poorer in the process. That’s why taking investment is highly introduced and encouraged. That way, even if your expenses are high since the prices of basic commodities are also highly increasing, your investment profits will also be a lot of help to you to combat your financial problems.
That absolutely true, we can't just stick to one income, we have to look for other sources of income that can support our needs. By having several sources of income, We can get through the phase where the prices of all basic necessities rise due to Inflation. I think there's no harm in trying to learn new skills in addition to your main skills, using your free time to learn these new skills can provide opportunities to increase your income. If there is one source of income, it is also very difficult to divide it into several parts, including if we have the desire to invest.
This is already required if our main income cannot fulfill many things, currently the increase in the price of goods is a natural thing to happen, but we also have to continue to fulfill all of that, so it is required that we can increase our income or earn a lot.
There are quite a lot of things that must be fulfilled, needs and desires and currently when the price of necessities is increasing, we have no other choice, anything will be done to be able to fulfill them all.