Inflation benifits the borrowers. Fist currency makes thing run smoothly when well managed, alternatives such as the gold standard have proven to be much worse that's why everyone switched
the borrowers that just have a mortgage for their own house while working for a paycheck don't really benefit from it. Sure, their debt has been reduced, but their wage too. And inflation is generally lower then interest, so that benefit gets wiped too.
The by far biggest winners with inflation are the people that own a lot of assets.
I recommend Broken Money for history and analysis how it came to be that things are how they are.
https://www.reddit.com/r/science/comments/18tl490/abandoning...
The gold standard caused financial crash after crash