In economics, Gresham's law is a monetary principle that states "bad money drives out good money." For example, if you have hard money like Bitcoin in circulation, whose inflation decreases every 4 years and moves towards zero, and the dollar, which is printed uncontrollably and quickly loses purchasing power, people will tend to spend the bad form of money that loses purchasing power day by day and save the good form of money whose purchasing power increases.
https://en.wikipedia.org/wiki/Gresham%27s_law
https://en.wikipedia.org/wiki/Gresham%27s_law
The inflation is there to incentivize spending (using) currency.
Money that's not being used is not money and Bitcoin is currently losing it's main purpose (Digital Cash) and becoming nothing more than a legal Ponzi scheme.
https://en.wikipedia.org/wiki/Ponzi_scheme
Are nVidia/Apple stocks a legal Ponzi scheme too?
What if someone wants to flee their country with 12 words inside their sock? There are legit use cases than make it even better than physical gold.