The killer app for Bitcoin is escaping government fiat money that is backed by literally nothing at all and is being printed at increasingly alarming rates. 40% of all USD ever created were “made” in 2020. That will have repercussions for decades and isn’t a currency I want to stay in.
https://fred.stlouisfed.org/series/M1
Ironically (or not) Bitcoin was created in 2009 right when that graph gets really crazy.