Low inflation like 2% year will leave you with 20% worth of saving after 40 years.
There is people understanding compounding interests and people doesn't.
You are in the latter.
1) Central Banks governed are not needed
2) a stable (as in supply stable) currency is desirable because it doesn't redistribute value from an actor to another.
3) a mildly deflating currency is better than a mildly inflating currency because it reward saving and not spending (and saving is more difficult than spending so it can use some help).
4) a mildly deflating currency reward prudent people (people investing what they can lose, investing minimising the risks and maximising the rewards), inflation reward imprudent people (people investing too much, what they can not afford to lose, etc.)
Moderate inflation is not necessarily bad. Please note that if interest rates exceed inflation, your savings do not necessarily diminish.
It is unpredictable / run-away inflation which people hate.
Inflation cause, ALWAY - by design - transfer of purchasing power from old money holders to new money holders.
If interest rates exceed inflation, there is no reason for the government to print money.
In fact, inflation (of the money supply) increase just to keep interest rates down on the market.
What just happen is the government print more (a lot more) and take loans. The interest rate is raised to drain liquidity from the markets and people give loan to the government in exchange for 10-15% interest rates. These savings given to the government slow down consumption and keep some prices lows (not all). The government spend them in some silly way (like building infrastructures private enterprises could build with their money at their risks) and some prices normal people is unaware of rise a lot faster than inflation.
Then, a few years later, the government is unable to pay off its debts and continue to keep printing even more to paper the difference and make laws to raid private retirement funds, pay supplier later, raise taxes
I'm from Italy, I know how it work.
When Italy fought inflation in the '80s the government just stopped (slowed down) the printing presses and raised interest rates to gather funds from private investors in bonds. And in the 1992 it was on the edge of bankruptcy. CPI was low, inflation was lower, but the debts was exploding. They raided people savings, changed laws of retirements (dropping the bill on youngers generations), raise taxes from 33% to 43% of the GDP. Now, one generation later we have higher taxes, lower savings, more corruption, and we are back on the edge of bankruptcy.