I don't know all the economic reasons for a 2% inflation rate. But one of them is to disincentivize the hoarding of currencies and making investments in assets

I don't know all the economic reasons for a 2% inflation rate. But one of them is to disincentivize the hoarding of currencies and making investments in assets like bonds, treasuries or equities more appealing. So you probably want some amount of inflation to always remain.