system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why prices are increasing but never decreasing? for example: food prices, living expenses etc.
gpt
The economy is manipulated to always have some level of inflation. The opposite, deflation, is very dangerous and the government will do anything to avoid it. 

Imagine wanting to buy new sofa that costs 1,000. Next month it will be 900. Month after it will be 700. Would you buy it now? Or would you wait and save 300 bucks?

Deflation causes the economy to come to a screetching halt because people dont want to spend more than they need to, so they decide to save their money instead.

Because of this, a small level of inflation is the healthiest spot for the economy to be in. Somewhere around 2% is generally considered healthy. This way people have a reason to buy things now instead of wait, but they also wont struggle to keep up with rising prices.

Edit: to add that this principle mostly applies to corporations and the wealthy wanting to invest capital, i just used an average joe as it is an ELI5. While it would have massive impacts on consumer spending as well, all the people telling me they need a sofa now are missing the point.