Inflation is needed in the economy because there is an increase in the economy, although it is not good, inflation is really needed, but the inflation rate should not be too high which is not good, it must be at a stable number to be called good, with inflation stabilizing the economy when prices are no longer reasonable, Sometimes inflation is evil when the numbers start to rise too high, making the economy unstable.
Inflation is important and needed in the economy at a minimum rate but high inflation destroy the economy of the country. Imagine a country without inflation, that country would have a stabilized economy and nothing will be moving forward but stagnant. What happens when there's price stability, security will be granted and everyone will be relaxed which will not be healthy for the growth of the economy. Inflation encourage spending and that's way a little inflation is important. Without inflation, people will be saving instead of putting their money to work and helping the economy grow.
Why can't we just keep the currency at the same value? And why does it only happen to money? For example, the same wouldn't happen if we used gold as a currency instead. Is inflation a ploy that the government uses so people don't get rich off of savings?
Exactly, if the currency was stable, saving will be the easiest way to wealth accumulation as it was in the days of gold but since the currency we're using isn't backed it becomes difficult to keep the currency stable. The government keeps printing new money knowing fully well it'll only lead to more inflation but they won't stop. They're creating a problem knowingly and they spend more money trying to resolve a problem that they know is irresolvable with the current currency system.