So you're essentially saying:
"If you have cash, you should gamble it by investing it in stocks or business."
but that's risking the money I earned. I don't want to risk it, I earned it, I just want to save it and not have it evaporate over the years.
The Bank of Canada found that a Bitcoin based economy would have the same amount of drag as a 48% rate of inflation [1].
A 2% rate of inflation is trivial in the near term, and in the long term encourages productive allocation of capital. Inflation literally only matters to people sitting on cash -- and that's the point! If you invest it in anything inflation stops mattering and the constant-dollar return starts to matter.
[1] https://www.bankofcanada.ca/wp-content/uploads/2019/09/swp20...